{"title":"Flatteners, Reducers \u0026 Extenders","description":"","products":[{"product_id":"tak-m-300-corrector","title":"TAK M-300 CORRECTOR","description":"\u003cp\u003eTakahashi Mewlon-300 CR Corrector, MCR300\u003c\/p\u003e\r\n\u003cp\u003eThe Takahashi Mewlon-300 CR Corrector is designed to work with every Mewlon-250 and Mewlon-300 ever made. Wide field oculars and medium format CCD cameras will perform excellently with the Mewlon CR corrector. The Takahashi Mewlon-300 CR Corrector can be viewed as a tri-focal device with the corrected fields at three different focal ratios.\u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default","offer_id":40935526006956,"sku":"MCR300","price":1620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/products\/711-30030.jpg?v=1639676781"},{"product_id":"takahashi-fc-fs-multi-flattener-ca-ring-fc-50","title":"Takahashi FC-FS Multi Flattener CA Ring FC-50","description":"\u003cp\u003eThe CA ring 50 is designed to adapt the FC\/FS Multi-Flattener for use with the FC-50 telescope.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default","offer_id":40935431209132,"sku":"TKA01203","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/products\/image-not-available-2.jpg?v=1639704666"},{"product_id":"prima-luce-adapter-esatto-2-for-arco-2","title":"Prima Luce Adapter ESATTO 2\" for ARCO 2\"","description":null,"brand":"Prima Luce Lab","offers":[{"title":"Default Title","offer_id":46718036213932,"sku":"PRI-PL3600412","price":59.0,"currency_code":"USD","in_stock":true}]},{"product_id":"tak-67-flattener-extension-tube-toa-150","title":"TAK 67 Flattener Extension Tube  (TOA-150)","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718066786476,"sku":"TKA26583","price":89.0,"currency_code":"USD","in_stock":true}]},{"product_id":"tak-76-f-5-5-reducer-36mm-cir","title":"TAK 76 F-5.5 REDUCER 36MM CIR","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718066983084,"sku":"TRD0070","price":615.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-caa-98mm-female-to-92mm-male-coupling","title":"Tak CAA 98mm Female to 92mm Male Coupling","description":null,"brand":"Land Sea \u0026 Sky","offers":[{"title":"Default Title","offer_id":46718069047468,"sku":"TKP09892","price":110.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-cca250-super-reducer","title":"TAK CCA250 SUPER REDUCER","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718069342380,"sku":"TSR0645CCA","price":2160.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-e-250-digital-corrector","title":"TAK E-250 DIGITAL CORRECTOR","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718070685868,"sku":"TDC250","price":2095.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-epsilon-180-corrector","title":"TAK Epsilon 180 Corrector","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718071603372,"sku":"TKP68580","price":1100.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-fsq-106ed-645-super-red","title":"TAK FSQ-106ED 645 SUPER RED","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718075207852,"sku":"TSR0645ED","price":1960.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-m-250-corrector","title":"TAK M-250 CORRECTOR","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718076420268,"sku":"MCR250","price":1240.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-reducer-for-frc-300","title":"TAK Reducer for FRC-300","description":null,"brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718079533228,"sku":"TKA81580","price":1140.0,"currency_code":"USD","in_stock":false}]},{"product_id":"tak-toa-645-flattener-0-99x-for-toa-130","title":"Tak TOA 645 Flattener 0.99X for TOA-130","description":"\u003cp\u003eThe newly designed 645 flattener features two fully multi-coated lens elements in two groups and provides outstanding correction out to a 60 mm image circle. Being designed specifically for the TOA-130N and TOA-150B, RMS spot diameters of 1 micron on-axis are achieved. At a 30 mm diameter image circle, the RMS spot diameter is 2 microns, and at 43 mm it is 3 microns. Even out to the full diameter of 60 mm, the RMS spot diameter is 5 microns. With these spot sizes, images are nearly aberration on even the newest small pixel sensors.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe flattener is available in two versions, one for the TOA-130N and one for the TOA-150B. Optically, the two versions are identical, with the only difference being the length of the spacer on the camera side of the adapter. Unlike the old 67 flattener, the 645 flattener has an M72 thread on the telescope side, meaning it can be used not only on the TOA-130NFB, but on the TOA-130NS as well.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor the TOA-130N with the included adapter ring (L), the flattener has a male M72 facing the telescope and a female M54 facing the camera. The metal back distance from the M54 thread is 56.2 mm. If you remove the adapter ring (L), the camera can interface with a female M72 thread with a metal back distance of 83.7 mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor the TOA-150 with the included adapter ring (S), the flattener has a male M72 facing the telescope and a female M54 facing the camera. The metal back distance from the M54 thread is 56.2 mm. If you remove the adapter ring (S), the camera can interface with a female M72 thread with a metal back distance of 73.9 mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"option","offer_id":46718081466540,"sku":"TKA31587S","price":670.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/844fd1aa-d149-4291-ace0-b39aae3bf011.webp?v=1783109253"},{"product_id":"takahahsi-fsq-106edx3-645-qe-reducer-set","title":"TAKAHAHSI FSQ-106EDX3 645 QE REDUCER SET","description":"\u003cp\u003eThe Takahashi 0.72X reducer QE reduces the focal length of the FSQ-106EDX3 telescope by 0.72X, increasing the speed of the optical system for astrophotography.  The reducer prodces a 60 mm diameter image circle tha is ideal for larger imaging chips.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718083629228,"sku":"TKA36580X","price":2310.0,"currency_code":"USD","in_stock":false}]},{"product_id":"takahashi-645-0-72x-reducer-qe","title":"TAKAHASHI 645 0.72X REDUCER QE","description":"\u003cp\u003eThe Takahashi 0.72X reducer QE reduces the focal length of the FSQ-106EDX4 telescope by 0.72X, increasing the speed of the optical system for astrophotography.  The reducer prodces a 60 mm diameter image circle tha is ideal for larger imaging chips.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718083989676,"sku":"TKA36580L","price":2290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/99bfa0bf-fcf5-420d-bfc9-741ff72012c7.webp?v=1783109258"},{"product_id":"takahashi-645-reducer-ca-0-72x","title":"TAKAHASHI 645 REDUCER-CA 0.72X","description":"\u003cp\u003eThe Takahashi 645 Reducer-CA 0.72X reduces the focal length of the CCA-250 telescope by 0.72X, increasing the speed of the optical system for astrophotography.  The reducer prodces a 60 mm diameter image circle that is ideal for larger imaging chips.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718084022444,"sku":"TKA86580L","price":2090.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/8575c451-aef6-4d20-a9da-00cbdfd2117c.webp?v=1783109258"},{"product_id":"celestron-f-6-3-focal-reducer","title":"CELESTRON F-6.3 FOCAL REDUCER","description":"\u003cp\u003eThis Celestron combination focal reducer and field corrector lens accessory works with all Celestron 5\", 6\", 8\", 9 1\/4\", 11\" and 14\" Schmidt-Cassegrain telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer\/Corrector is f\/6.3 for C5, C6, C8, C9¼ and C11 telescopes and f\/7 for the C14 telescope.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eOverview:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThis combination focal reducer and field corrector lens accessory works with all Celestron 5\", 6\", 8\", 9 1\/4\", 11\" and 14\" Schmidt-Cassegrain telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer\/Corrector is f\/6.3 for C5, C6, C8, C9¼ and C11 telescopes and f\/7 for the C14 telescope.\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46718091493548,"sku":"94175","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/c6145c3c-7e76-4bd9-9f93-f4d8bd9a8d17.webp?v=1783109966"},{"product_id":"celestron-reducer-lens-7x-edgehd-11000","title":"CELESTRON Reducer Lens .7x - EdgeHD 11000","description":"\u003cp\u003eCelestron’s new EdgeHD reducers feature a custom 5 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system.  Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eOverview:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThe EdgeHD .7x Focal Reducer Lens Makes Your EdgeHD 1100 One Full F-Stop Faster Than f\/10, Reducing Your Exposure Time by One-Half to Capture the Same Brightness of Object\u003c\/li\u003e\r\n\u003cli\u003e5-element lens design\u003c\/li\u003e\r\n\u003cli\u003eMaintains similar flat-field performance as native Edge HD optical design\u003c\/li\u003e\r\n\u003cli\u003eIncreases Field of View by 43% to Better Capture Wide Field Images\u003c\/li\u003e\r\n\u003cli\u003eThreads Directly onto the 3.25\" threads of the EdgeHD which Reduces Mechanical Vignetting and Allows for use with Larger (Full Frame) Sensors and Off-Axis Guiders\u003c\/li\u003e\r\n\u003cli\u003eMaintains the Identical Back Focus When Used at F\/10 and Provides Generous Back Focus to Accommodate Additional Accessories and Wide Variety of Cameras\u003c\/li\u003e\r\n\u003cli\u003eAllows Use of Existing EdgeHD T-adapters With or Without the Reducer Lens\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46718100504748,"sku":"94241","price":849.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/dcb3855f-7645-4ec6-b67a-dd37b5b59afb.webp?v=1783109989"},{"product_id":"celestron-reducer-lens-7x-edgehd-1400","title":"CELESTRON Reducer Lens .7x - EdgeHD 1400","description":"\u003cp\u003eCelestron’s new EdgeHD reducers feature a custom 5 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system.  Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eOverview:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThe EdgeHD .7x Focal Reducer Lens Makes Your EdgeHD 1400 One Full F-Stop Faster Than f\/11, Reducing Your Exposure Time by One-Half to Capture the Same Brightness of Object\u003c\/li\u003e\r\n\u003cli\u003e5-element lens design\u003c\/li\u003e\r\n\u003cli\u003eMaintains similar flat-field performance as native Edge HD optical design\u003c\/li\u003e\r\n\u003cli\u003eIncreases Field of View by 43% to Better Capture Wide Field Images\u003c\/li\u003e\r\n\u003cli\u003eThreads Directly onto the 3.25\" threads of the EdgeHD which Reduces Mechanical Vignetting and Allows for use with Larger (Full Frame) Sensors and Off-Axis Guiders\u003c\/li\u003e\r\n\u003cli\u003eMaintains the Identical Back Focus When Used at F\/11 and Provides Generous Back Focus to Accommodate Additional Accessories and Wide Variety of Cameras\u003c\/li\u003e\r\n\u003cli\u003eAllows Use of Existing EdgeHD T-adapters With or Without the Reducer Lens\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46718100635820,"sku":"94240","price":849.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/3983c6ec-6b1e-4b7f-beeb-16d824489b08.webp?v=1783109989"},{"product_id":"reducer-66x-for-cdk-20-cdk-24","title":"REDUCER, .66X (FOR CDK 20 \u0026 CDK 24)","description":null,"brand":"PlaneWave","offers":[{"title":"Default Title","offer_id":46718102700204,"sku":"200166","price":1400.0,"currency_code":"USD","in_stock":false}]},{"product_id":"reducer-66x-for-cdk-12-5-14-17","title":"REDUCER, .66X FOR CDK 12.5-14-17","description":null,"brand":"PlaneWave","offers":[{"title":"Default Title","offer_id":46718102896812,"sku":"125166","price":1400.0,"currency_code":"USD","in_stock":false}]},{"product_id":"reducer-lens-66x-for-use-with-irf90-cdk20-24","title":"REDUCER, LENS .66x FOR USE WITH IRF90 \u0026 CDK20-24","description":null,"brand":"PlaneWave","offers":[{"title":"Default Title","offer_id":46718103060652,"sku":"600166","price":1400.0,"currency_code":"USD","in_stock":false}]},{"product_id":"explore-scientific-3x-focal-extender","title":"Explore Scientific 3X Focal Extender","description":null,"brand":"EXPLORE SCIENTIFIC","offers":[{"title":"Default Title","offer_id":46718121902252,"sku":"FE03-020","price":299.99,"currency_code":"USD","in_stock":false}]},{"product_id":"hyperstar-8-v4-filter-slider","title":"HyperStar 8 v4 + Filter Slider","description":null,"brand":"Land Sea \u0026 Sky","offers":[{"title":"Default Title","offer_id":46718126358700,"sku":"HS4-C8-FS","price":1128.0,"currency_code":"USD","in_stock":false}]},{"product_id":"altair-0-8x-reducer-60edf","title":"Altair 0.8x Reducer 60EDF","description":"\u003ch2 class=\"product-page-lower-heading grid-5 col cf\"\u003eProduct information\u003c\/h2\u003e\r\n\u003cdiv class=\"grid-7 col\"\u003e\r\n\u003cp\u003eTo attach to your 60EDF Refractor, unscrew the rear 2\" push-fit adaptor from the Camera Rotator on the back of the focuser, and screw the reducer into the focuser for a rigid fit.\u003cbr\u003e\u003cbr\u003eSpacing from rear flat shoulder of the reducer to your camera sensor is 55mm excluding all threads.\u003c\/p\u003e\r\n\u003cp\u003eThe camera-facing rear thread is M48 male, allowing the use of the Starwave DSLR Adapter for Canon\/Nikon and various Altair Astro M48 spacers for use with CMOS astro cameras.\u003cbr\u003e\u003cbr\u003eFor use with the Hypercam, we recommend starting with the M48-T2-15.5-EXT adapter to change from M48 to T2-Thread. You can then choose various T2 spacer rings to get to the desired distance to your sensor.\u003c\/p\u003e\r\n\u003cp\u003eHere are two examples below showing spacing with the Altair Magnetic Filter holder which takes up 17mm of optical path. \u003c\/p\u003e\r\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"4\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e\u003cstrong\u003eCamera:\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003ctd\u003e\u003cstrong\u003eHypercam Fan Cooled (12.5mm)\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003ctd\u003e\u003cstrong\u003eHypercam TEC Cooled (17.5mm)\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eMagnetic filter holder:\u003c\/td\u003e\r\n\u003ctd\u003eMAGF2-M48-T2 (17mm)\u003c\/td\u003e\r\n\u003ctd\u003eMAGF2-M48-T2 (17mm)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eSpacers required to reach 55mm:\u003c\/td\u003e\r\n\u003ctd\u003e\r\n\u003cp\u003eM48-T2-15.5-EXT (15.5mm)\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd\u003e\r\n\u003cp\u003eM48-T2-15.5-EXT (15.5mm)\u003c\/p\u003e\r\n\u003cp\u003eT2-5-EXT (5mm)\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003c\/div\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718135074988,"sku":"RED-60EDF","price":200.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/4e25d09f-7209-4b9a-819d-48c74351a16d.webp?v=1783110699"},{"product_id":"altair-adc-atmospheric-dispersion-corrector","title":"Altair ADC Atmospheric Dispersion Corrector","description":"\u003cp\u003eAltair Atmospheric Dispersion Corrector for planetary and lunar imaging or observing. \u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe ADC corrects for atmospheric dispersion (rainbow effect) producing sharper images of object closer to the horizon.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eParticularly useful on Mars, Saturn, Jupiter and the moon at about 20-40 degrees altitude which.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe prisms are high quality K9 glass with broadband multicoatings and a prism angle of 2.5° which gives a maximum deviation angle of 5°, which is ideal for the UK, Europe and North America.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe rear side has 1.25\" pushfit adapter with 3x thumbscrews and internal compression ring to protect your Altair or other CMOS cameras and eyepieces. The pushfit adapter can be unscrewed to reveal a T-Thread for direct camera connection. The nosepiece is threaded for filters.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThis is a high quality accessory as the images by Mr Neil Phillipson of the Langrenus area on the moon will attest (click thumbnails for full resolution).\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe unit has a rotating lockable scale, so you can record your optimum settings.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eInstructions and tips for using the Altair ADC:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eStep 1:\u003c\/strong\u003e Learn what atmospheric dispersion looks like We have included and \"before and after adjustment\" image in the product images which is worth viewing. Firstly, examine the image of the target object in the video preview window. You should see a subtle \"rainbow effect\" on objects below an altitude of 40 degrees above the horizon. This effect is increased the closer you get to the horizon until it's very obvious. To see the \"rainbow effect\" more clearly it is recommended to  increase the saturation control of your camera (this feature is found under the \"Colour Adjustment\" menu in AltairCapture and other image capture software and it will not affect the final image provided you are imaging in RAW mode recording .SER files which is the best setting for solar system imaging). Because adjustment of the prisms offsets the image slightly, it helps to zoom in (mouse wheel in AltairCapture) to see it more clearly while starting at lower powers then moving to higher powers - look along the border of high contrast features on the moon and the edge of planets to see the effect more clearly. \u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eStep2:\u003c\/strong\u003e Learn to orientate the unit with the horizon line. \u003ca href=\"https:\/\/www.altairastro.com\/images\/D\/ADC%20Prism%20Orientation%20Diagram%20Instructions.jpg\" target=\"_blank\" rel=\"noopener\"\u003eClick here for ADC instructions\u003c\/a\u003e. (new window)\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eStep 3: Learn to adjust.\u003c\/strong\u003e Move the levers together or apart, to change the divergence angle of the prisms relative to each other. By changing the angle of deviation, you will get a feel for the optimum position by viewing the target object in preview mode. Once you are satisfied with the image, and the \"rainbow\" effect is cancelled out, your prisms are set. The prism levers overlap so that most of the time you won't need to rotate the ADC itself, however you may need to rotate it a little to accommodate the overlap, which is as large as it can be without causing the body of the ADC to flex too much. Be patient. It takes a little time to get the feel of an ADC, possibly a session or two, however the results are well worth it and they are far higher quality than attempting to align the colour channels in post processing software because you are starting with a better image. We recommend putting the barlow lens in front of the ADC in most situations as the prisms will perform better at highre focal ratios used in solar system imaging. \u003c\/p\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718136385708,"sku":"ADC","price":145.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/b3f9cf9c-412e-48c2-bb17-8bf27b8e542a.webp?v=1783110708"},{"product_id":"altair-flattener-for-60-mm-edf-refractor","title":"Altair Flattener for 60 mm EDF Refractor","description":"\u003cp\u003eSimply remove unscrew the rear 2\" push-fit adapter from the 60EDF focuser, and screw the flattener into the focuser-end cap for a rigid fit.\u003cbr\u003e\u003cbr\u003eThe camera-facing rear thread on the Planostar unit is M48 male, which allows the use of the Starwave DSLR Adapter for Canon\/Nikon and various Altair Astro M48 spacers for use with CCD cameras.\u003cbr\u003e\u003cbr\u003eFor use with the Hypercam (12.5mm backfocus) you need the T2M-M48F adapter to change from M48 to T2-Thread. \u003cbr\u003e\u003cbr\u003eSpacing from rear flat shoulder of the PlanoStar to the CCD film plane is approximately 54.8mm and you can use the Altair Astro M48 or T-thread spacer system to fine-tune the optimum distance for your camera sensor and filter setup.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhy is a field flattener required to take images with my refractor?\u003c\/strong\u003e All refractor lens systems exhibit some natural field curvature which, while not relevant for visual observation, can be visible in images. This field flattener\/reducer screws directly into the rear focuser rotator of your refractor, converting it into an astrograph with a flatter photographic field than the existing lens system alone. \u003c\/p\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718139465900,"sku":"FLAT-60EDF","price":165.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/9086f4db-618c-40be-9cf0-f5a98852ac2e.webp?v=1783110710"},{"product_id":"altair-flattener-for-72mm-edf-refractor-m48","title":"Altair Flattener for 72mm EDF Refractor - M48","description":null,"brand":"Altair","offers":[{"title":"Default Title","offer_id":46718139498668,"sku":"FLAT72","price":195.0,"currency_code":"USD","in_stock":false}]},{"product_id":"altair-lightwave-0-6x-reducer","title":"Altair Lightwave 0.6x Reducer","description":"\u003cp\u003eThe Lightwave 0.6x focal reducer gives an 0.6x reduction in F-Ratio for faster exposure times, as well as a correspondingly wider field for astro-photography. Designed primarily for refractor telescopes of F6 or longer focal ratios.\u003c\/p\u003e\r\n\u003cdiv\u003e \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\u003cdiv\u003e- Reduces and flattens phtographic field.\u003c\/div\u003e\r\n\u003cdiv\u003e- 38mm Clear aperture\u003c\/div\u003e\r\n\u003cdiv\u003e- Integral T-Ring adapter thread.\u003c\/div\u003e\r\n\u003cdiv\u003e- Requires back-focus of 55mm to CCD Chip.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\u003cdiv\u003e- For DSLRs a standard T-Thread adapter of approx. 10mm thickness is required.\u003c\/div\u003e\r\n\u003cdiv\u003e- The standard 2\" OD barrel will fit any 2\" format telescope like an eyepiece.\u003c\/div\u003e\r\n\u003cdiv\u003e- The base of the 2\" OD barrel is threaded for 2\" filters.\u003c\/div\u003e\r\n\u003cdiv\u003e- CNC machined body with gloss black anodized finish.\u003c\/div\u003e\r\n\u003cdiv\u003e- Includes a CNC machined T-threaded end-cap to protect against dust on the rear lens element which is more exposed than the front element. A plastic dust cap is included for the 2\" OD front barrel.\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718140809388,"sku":"LW-0.6xRED","price":190.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/5b6841bc-b943-4b02-9b7f-418072c01723.webp?v=1783110720"},{"product_id":"altair-lightwave-0-8x-reducer","title":"Altair Lightwave 0.8x Reducer","description":"\u003cp\u003eThe Lightwave 0.8x focal reducer gives an 0.8x reduction in F-Ratio for faster exposure times, as well as a correspondingly wider field for astro-photography. Designed primarily for refractor telescopes of F6 or longer focal ratios, however also known to work with RC telescopes.\u003c\/p\u003e\r\n\u003cdiv\u003e- Reduces and flattens phtographic field.\u003c\/div\u003e\r\n\u003cdiv\u003e- 38mm Clear aperture\u003c\/div\u003e\r\n\u003cdiv\u003e- Integral T-Ring adapter thread.\u003c\/div\u003e\r\n\u003cdiv\u003e- Requires back-focus of 55mm to CCD Chip.\u003c\/div\u003e\r\n\u003cdiv\u003e- For DSLRs a standard T-Thread adapter of approx. 10mm thickness is required.\u003c\/div\u003e\r\n\u003cdiv\u003e- The standard 2\" OD barrel will fit any 2\" format telescope like an eyepiece.\u003c\/div\u003e\r\n\u003cdiv\u003e- The base of the 2\" OD barrel is threaded for 2\" filters.\u003c\/div\u003e\r\n\u003cdiv\u003e- CNC machined body with gloss black anodized finish.\u003c\/div\u003e\r\n\u003cdiv\u003e- Includes a CNC machined T-threaded end-cap to protect against dust on the rear lens element which is more exposed than the front element. A plastic dust cap is included for the 2\" OD front barrel.\u003c\/div\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718140842156,"sku":"LW-0.8xRED","price":170.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/7ae121ac-d7ec-4620-a017-5f57f15e2d94.webp?v=1783110720"},{"product_id":"altair-lightwave-1-0x-reducer-flattener","title":"Altair Lightwave 1.0x Reducer-Flattener","description":"\u003cp\u003eA non-focal reducing Field Flattener which gives improved results for photography with triplet and doublet refractor telescopes of between F5.5 and approximately F6.25 focal ratio.\u003c\/p\u003e\r\n\u003cp\u003e\u003cbr\u003e- Gives improved results with refractors with focal lengths up to F6.5, and with smaller chips, up to F7.5 without changing the focal length of the telescope.\u003cbr\u003e- Integral T-Ring adapter thread.\u003cbr\u003e- Requires back-focus of 55mm to CCD Chip.\u003cbr\u003e- For DSLRs a standard T-Thread adapter of approx. 10mm thickness is required.\u003cbr\u003e- The standard 2\" OD barrel will fit any 2\" format telescope like an eyepiece.\u003cbr\u003e- The base of the 2\" OD barrel is threaded for 2\" filters.\u003cbr\u003e- CNC machined body with gloss black anodized finish.\u003cbr\u003e- Includes a CNC machined T-threaded end-cap to protect against dust on the rear lens element which is more exposed than the front element. A plastic dust cap is included for the 2\" OD front barrel.\u003c\/p\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718140874924,"sku":"LW-1.0xFLAT","price":150.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/3b7f82d5-bdfd-481b-99e7-2e7b66f7929b.webp?v=1783110721"},{"product_id":"altair-planostar-2-1-0x-flattener-for-80mm-f6-triplet-apo","title":"Altair PlanoStar 2\" 1.0x Flattener for 80mm F6 Triplet APO","description":"\u003cdiv\u003eThis field flattener is designed to work with the Altair Astro 80mm F6 Super ED Triplet APO, and has an M48 rear thread adapter for connecting your DSLR or CCD camera. All triplet refractor lens systems with good colour correction exhibit some natural field curvature which, while not relevant for visual observation, can be visible in astro-images. This field flattener screws directly into the rear focuser rotator of your Altair 80mm F6 ED triplet APO, converting it into an astrograph with a flatter photographic field than a triplet lens system alone. It does not change the focal length of the telescope significantly enough to affect subject framing.\u003c\/div\u003e\r\n\u003cdiv\u003e \u003c\/div\u003e\r\n\u003cdiv\u003e\u003cstrong\u003eAltair PlanoStar Field Flattener specification:\u003c\/strong\u003e\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThe PlanoStar 80m EDT field flattener corrects for field curvature and improves images taken with cameras up to APS size, allowing more of the photographic field to be utilised.\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eThe ideal distance to CCD sensor from the rear of the conical adapter flat shoulder excluding the M48 thread is 54.7mm. \u003cstrong\u003ePlease see the diagram in the thumbnail images.\u003c\/strong\u003e\n\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eThe flattener contains 2x 2\" FMC lens elements which, when combined with the front triplet lens system, produce a 5-element optical system with a flatter field than a triplet alone.\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eHigh quality multi-coatings on all surfaces ensure maximum transmission and almost zero reflections. These coatings are so efficient, the flattener lenses are almost invisible at first glance.\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003eThe flattener is threaded directly to the rear of the focuser for optimum rigidity. Simply remove the 2\" pushfit adapter and screw the flattener into the rear of the focuser.\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eThe M48 rear aperture reduces Vignetting compared to standard 42mm Photo T-Thread.\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eThe optimum distance from the rear flat shoulder (excluding the m48 thread) of the flattener to the CCD chip in your camera is 54.7mm, however tests indicate that the flattener is tolerant about 1.5mm either side of this distance. The smaller your CCD chip, the more tolerance you have to work with.\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cdiv\u003eTo connect a Canon DSLR you need a Canon\/Nikon M48 DSLR Adapter\u003c\/div\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718141563052,"sku":"PLANOS-2-1.0-80-F6-M48","price":150.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/af143abe-f190-4f52-ae91-1839bcab1ea4.webp?v=1783110724"},{"product_id":"altair-planostar-3-1-0x-flattener-for-102-110-115-130-refractors","title":"Altair PlanoStar 3\" 1.0x Flattener for 102 110 115 130 refractors","description":"\u003cp\u003eThis large format field flattener is designed to work with the Altair Astro 102mm, 115mm and 130mm F7 EDT Triplet APOs, and has an M48 rear conical adapter for connecting your DSLR or CCD camera. It is compatible with 35mm format CCD chips, utilising about 95% of the field. The flattener works best at F7 with about a half F stop tolerance. The flattener screws into the rear focuser rotator of your Altair EDT APO, converting it into an astrograph with a flatter photographic field.\u003c\/p\u003e\r\n\u003cp\u003eFocuser compatibility for direct-threaded attachment:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eFits the new 2014 2.5\" Rack 'n Pinion focuser on the \u003cstrong\u003e2014 Altair Wave Series refractors\u003c\/strong\u003e by means of an adapter (Product code: \u003cstrong\u003ePLANOS-3-1.0-M48-RP25-ADAPT\u003c\/strong\u003e) which is ordered in the dropdown menu opposite. Simply remove the self-centering adapter and screw the adapter into the focuser body, then screw the flattener into the adapter.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eFits the standard 3\" Crayford Focuser on the \u003cstrong\u003epre-2014 Altair Wave Series refractors\u003c\/strong\u003e directly - remove the 2\" pushfit assembly and screw it in.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eFits the standard 3\" Crayford Focuser on the \u003cstrong\u003eStarwave 80, 102 and 110mm ED Doublet refractors\u003c\/strong\u003e - remove the 2\" pushfit assembly and screw it in.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eAll triplet APOs (and arguably all telescopes) have some amount of field curvature. The field curvature of the Altair Wave Series refractors is amongst the lowes on the market however for larger DSLR camera sensors, some correction is required for the flattest possible field. To see the benefit, we've uploaded an \u003cstrong\u003e\u003cu\u003e\u003ca href=\"http:\/\/www.altairastro.com\/images\/D\/115%20EDT%20Flattener%20Daytime%20Test%20Image%201.4%20miles.jpg\" target=\"_blank\" rel=\"noopener\"\u003eAltair Planostar field flattener test image taken with a 35mm full frame DSLR\u003c\/a\u003e\u003c\/u\u003e\u003c\/strong\u003e by UK professional photographer Francis Milsom - you can also click on the product gallery to see this and more images showing flattener performance.\u003c\/p\u003e\r\n\u003cdiv\u003e\r\n\u003cp\u003e\u003cstrong\u003eAltair PlanoStar Field Flattener specification: \u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eThe 3\" PlanoStar field flattener corrects for field curvature without altering the focal length of the telescope.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e2x FMC lens elements when combined with the front triplet lens system, produce a 5-element optical system with excellent colour correction.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eHigh quality multi-coatings on all surfaces ensure maximum transmission and almost zero reflections. These coatings are so efficient, the flattener lenses are almost invisible at first glance.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eThe flattener is threaded directly to your focuser (or via an adapter) for optimum rigidity. Simply remove the 2\" pushfit assembly from your focuser, and screw the flattener into the rear of the focuser.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eFor 35mm DSLR chips, the conical adapter with M48 rear aperture reduces Vignetting to almost undetectable levels - compared to a T-Thread connection which causes some vignetting.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eThe optimum distance from the rear flat shoulder (excluding the m48 thread) of the flattener to the CCD chip in your camera is 51.5mm, however tests indicate that the flattener is very tolerant either side of this distance and you can probably work with a 5mm tolerance, if not more. The smaller your CCD chip, the more tolerance you have to work with and some customers with small chips are working 10mm outwards with no issues.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003eDSLR cameras and spacers: To connect a DSLR you need the Canon\/Nikon M48 DSLR Adapter (available separately in the associated products below). The DSLR adapter adds about 10mm to the light path. The ideal distance to CCD sensor from the rear of the conical adapter flat shoulder excluding the M48 thread is 51.5mm. Here are two examples:\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cstrong\u003eExample Canon EOS DSLR with M48 adapter: \u003c\/strong\u003eThe Special Altair DSLR adapter adds 7mm to the light path, the EOS backfocus is 44mm. That's 54mm total minus the 51.5 ideal spacing which leaves 2.5mm. This is within 5mm tolerance.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cstrong\u003eExample Nikon F mount DSLR with M48 adapter:\u003c\/strong\u003e The generic Skywatcher Nikon DSLR adapter adds 8.5mm to the light path, and the Nikon backfocus is 46.5mm. That's 56.5mm total. 51.5mm ideal spacing minus 55mm = 3.5mm so this is within 5mm tolerance.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cstrong\u003eCCD cameras and spacers: \u003c\/strong\u003eIt's possible to fine tune the spacing between your CCD camera or DSLR chip by using the Altair variable M48 and fixed M48 spacers. We recommend buying the Altair M48 spacers as a set to use in various combinations to get the ideal backfocus when you use your CCD equipment. If you subtract the light path distance taken up by your camera from the ideal spacing of 51.5mm from the rear thread shoulder of the conical adapter.\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Altair","offers":[{"title":"Default Title","offer_id":46718141595820,"sku":"PLANOS-3-1.0-M48","price":260.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/7b50bbe1-fe44-4ee9-b9b9-8649dba52019.jpg?v=1783110724"},{"product_id":"cdk20-f-6-8-corrector-lens-assembly-for-changing-f-7-77-cdk20-to-wider-field-f-6-8-system","title":"CDK20 F-6.8 CORRECTOR LENS ASSEMBLY, FOR CHANGING F-7.77 CDK20 TO WIDER-FIELD F-6.8 SYSTEM.","description":null,"brand":"PlaneWave","offers":[{"title":"Default Title","offer_id":46718149918892,"sku":"200204","price":1400.0,"currency_code":"USD","in_stock":false}]},{"product_id":"cdk20-f-7-77-corrector-lens-assembly-for-changing-f-6-8-cdk20-to-longer-back-focus-f-7-77-system","title":"CDK20 F-7.77 CORRECTOR LENS ASSEMBLY, FOR CHANGING F-6.8 CDK20 TO LONGER BACK-FOCUS F-7.77 SYSTEM.","description":null,"brand":"PlaneWave","offers":[{"title":"Default Title","offer_id":46718149951660,"sku":"2002010","price":1400.0,"currency_code":"USD","in_stock":false}]},{"product_id":"celestron-7x-reducer-8-edgehd","title":"CELESTRON .7X REDUCER 8\" EdgeHD","description":"\u003cp\u003eCelestron’s new EdgeHD reducers features a custom 4 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eOverview:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThe EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f\/10, doubling the equivalent exposure at f\/10\u003c\/li\u003e\r\n\u003cli\u003e4-element lens design\u003c\/li\u003e\r\n\u003cli\u003eMaintains similar flat-field performance as native EdgeHD optical design\u003c\/li\u003e\r\n\u003cli\u003eIncreases field of view by 43% (double by area) to better capture wide field images\u003c\/li\u003e\r\n\u003cli\u003eOptimized for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras\u003c\/li\u003e\r\n\u003cli\u003eProvides generous 105mm back focus to accomodate additional accessories and a wide variety of cameras\u003c\/li\u003e\r\n\u003cli\u003eCompatible with EdgeHD 800 T-adapter\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46718150738092,"sku":"94242","price":419.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/cc07f23d-a525-4a91-9ded-4f22bebc1da0.webp?v=1783110752"},{"product_id":"celestron-7x-reducer-edgehd-925","title":"CELESTRON .7X REDUCER EDGEHD 925","description":"\u003cp\u003eCelestron’s new EdgeHD reducers feature a custom 4-element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eEdgeHD reducers offer high index optical elements, including extra low dispersion, exotic Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air to glass lens surfaces feature multiple layers of coating for maximum light transmission and color correction and contain blacken edges to minimize internal reflection and maximize image contrast. Large diameter lens elements, up to 60 mm clear aperture, ensure that the optimized image circle remains at a generous 42 mm for use with large CCD sensors.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eIncorporating computer assisted CNC machined aluminum housing, for precise spacing and alignment of optical elements, and threaded metal covers on the lens assembly to protect your investment from dust and scratches, our reducers offer you an outstanding mechanical design.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eWith the fastar option on all EdgeHD optical systems, coupled with the .7x reducer, your telescope becomes the most complete imaging system available in its price range today.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch3\u003ePerformance\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e 4-element optical layout designed specifically for the \u003ca href=\"https:\/\/www.landseaskyco.com\/celestron-celestron-edgehd-925-cge-tube.html\"\u003eEdgeHD 9.25\"\u003c\/a\u003e to maintain the flat-field performance of the EdgeHD optical design\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eMaintains the same back focus as when used at f\/10:\u003c\/strong\u003e Unlike generic reducers the EdgeHD .7x provides generous back focus to accommodate additional accessories and a wide variety of cameras. Also allows use of existing EdgeHD T-Adapters and other Celestron imaging accessories\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eOne full F-Stop faster than f\/10:\u003c\/strong\u003e Reduces the exposure time by one-half to capture the same brightness of object\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eIncrease field of view by 43%: \u003c\/strong\u003eBetter for capturing wide field images of larger galaxies and nebulae\u003c\/li\u003e\r\n\u003cli\u003e \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eGlass\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eLanthanum Glass Elements: \u003c\/strong\u003eEdgeHD reducer uses \"rare earth\" Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFully multi-coated lens elements:\u003c\/strong\u003e All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eBlacken edges:\u003c\/strong\u003e All lens elements have blacken edges to minimize internal reflection and maximize contrast\u003c\/li\u003e\r\n\u003cli\u003e \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eFull Frame Design\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eThreads directly onto the 3.25\" threads of the EdgeHD optical tube: \u003c\/strong\u003eReduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eClear aperture: \u003c\/strong\u003e60 mm clear aperture lens optimized for a 42 mm image circle for use with large CCD sensors.\u003c\/li\u003e\r\n\u003cli\u003e \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eMechanical Design\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eMachined aluminum housing: \u003c\/strong\u003eComputer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eThreaded metal covers for both ends of the lens assembly: \u003c\/strong\u003eTo protect your investment from unwanted dust and scratches.\u003c\/li\u003e\r\n\u003cli\u003e \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eVersatility\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFastar compatibility and f\/2 imaging with optional accessory: \u003c\/strong\u003ethe EdgeHD is the most complete imaging system in its price range.\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46718150803628,"sku":"94245","price":439.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/a740e14a-81c8-4513-935c-6dd8eb34e42c.jpg?v=1783110752"},{"product_id":"takahashi-epsilon-extender-1-5x-e-130d","title":"Takahashi Epsilon Extender 1.5X E-130D","description":"\u003cp\u003eTakahashi has released a series of 1.5X extenders for the Epsilon series of telescopes. Models for the Epsilon-130D and Epsilon-180ED are available for immediate purchase with delivery of the initial units expected in May. The model for the Epsilon-160ED will be available later in 2021.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe extenders provide a 1.5 times increase in focal length and are comprised of 7 optical elements in 5 groups. This design provides ultra-high performance that corrects coma aberration on each the model of Epsilon telescopes. Even at the extended focal length, the star image is equal to or better than that obtained at the native focal length of the telescope.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eIn all models, the extender provides an RMS spot size of 2 microns or less at the center of the field, and 8 microns or less at the diameter of a full frame sensor (44 mm). Spot diagrams for the three models are attached to this announcement.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eBelow are other technical details of the new extender for the Epsilon-130D and Epsilon-180ED models. Details for the Epsilon-160ED will be announced separately.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ctable\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eεExtender 130D\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eεExtender 180ED\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eModel\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eε-130D\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eε-180ED\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eFocal Length\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e650mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e770mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eF value\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e5\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e4.3\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eImage circle\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eΦ44mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eΦ44mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eOptical System\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e5 elements 7 groups\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e5 elements 7 groups\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eMaximum diameter total length\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e72.1mmx98.5mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e78.5mmx105.5mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eOTA side thread\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eM60 P-0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eM68 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eCamera side thread\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eM54 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eM54 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eWeight\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e450g\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e550g\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718191042732,"sku":"TKA69595","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/29524529-db19-443a-9619-11541cac6871.webp?v=1783112105"},{"product_id":"takahashi-epsilon-extender-1-5x-e-180ed","title":"Takahashi Epsilon Extender 1.5X E-180ED","description":"\u003cp\u003eTakahashi has released a series of 1.5X extenders for the Epsilon series of telescopes. Models for the Epsilon-130D and Epsilon-180ED are available for immediate purchase with delivery of the initial units expected in May. The model for the Epsilon-160ED will be available later in 2021.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eThe extenders provide a 1.5 times increase in focal length and are comprised of 7 optical elements in 5 groups. This design provides ultra-high performance that corrects coma aberration on each the model of Epsilon telescopes. Even at the extended focal length, the star image is equal to or better than that obtained at the native focal length of the telescope.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eIn all models, the extender provides an RMS spot size of 2 microns or less at the center of the field, and 8 microns or less at the diameter of a full frame sensor (44 mm).\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003eBelow are other technical details of the new extender for the Epsilon-130D and Epsilon-180ED models. Details for the Epsilon-160ED will be announced separately.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ctable\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eεExtender 130D\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eεExtender 180ED\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eModel\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eε-130D\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eε-180ED\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eFocal Length\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e650mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e770mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eF value\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e5\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e4.3\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eImage circle\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eΦ44mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eΦ44mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eOptical System\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e5 elements 7 groups\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e5 elements 7 groups\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eMaximum diameter total length\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e72.1mmx98.5mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e78.5mmx105.5mm\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eOTA side thread\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eM60 P-0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eM68 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eCamera side thread\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003eM54 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003eM54 P=0.75\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd width=\"208\"\u003e\r\n\u003cp\u003eWeight\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"151\"\u003e\r\n\u003cp\u003e450g\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd width=\"142\"\u003e\r\n\u003cp\u003e550g\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718191075500,"sku":"TKA68595","price":1010.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/8a7a0935-36be-4246-b044-5925c2a29c47.webp?v=1783112105"},{"product_id":"takahashi-extender-cq-1-7x-fs-60cb","title":"TAKAHASHI EXTENDER-CQ 1.7X (FS-60CB)","description":"\u003cp\u003eThe Takahashi Extender-CQ 1.7X is designed specifically for the FS-60CB telescope.  When screwed behind the objective model of the FS-60CB, it converts the telescope to an FS-60Q.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718191108268,"sku":"TKA20595","price":376.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/caba0498-cead-4f68-8ff9-1d1604b7117c.webp?v=1783112106"},{"product_id":"takahashi-extender-cr-1-5x","title":"TAKAHASHI EXTENDER-CR 1.5X","description":"\u003cp\u003eThe Takahashi Extender-CR 1.5X is designed specifically for the CCA and Corrected Mewlon series of telescopes.  It increase the focal length of these instruments without degrading the optical performance, maintaining pin point stars across the field.  \u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718191173804,"sku":"TKA82595","price":487.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/5030e53d-c0a5-4456-9d41-4b6929f7b0b6.webp?v=1783112106"},{"product_id":"takahashi-extender-ed-1-5x","title":"TAKAHASHI EXTENDER-ED 1.5X","description":"\u003cp\u003eThe Takahashi Extender ED is a 1.5X focal length extender designed for use with the TSA-120, TOA-130\/150 and FSQ-85 telescopes.  The extender is constructed using extra-low dispersion (ED) glass and features a 2 inch barrel design.\u003c\/p\u003e","brand":"TAKAHASHI","offers":[{"title":"Default Title","offer_id":46718191206572,"sku":"TKA37595","price":487.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/8073\/3868\/files\/ec60e55d-a28a-4b92-b8ea-1d2503c3d2b3.webp?v=1783112106"},{"product_id":"takahashi-f-3-0-6x-reducer","title":"TAKAHASHI F-3 0.6X REDUCER","description":"\u003cp\u003eThe 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