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Rowe-Ackermann Schmidt Optical Design – 8” f/2.2 flat field imaging system with rare-earth glass for outstanding images free of optical defects like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor.
Unlike the larger RASAs that work with DSLR and large CCD cameras, the 8” model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The astrograph does not work with standard DSLR cameras.
Ultra-Stable Focus System – six precision sealed ball bearings virtually eliminate image shift.
Integrated air-cooling system –12V DC MagLev fan reduces cooldown time and provides optimal air flow while filtering out dust.
Internal filter mount – seamlessly accommodates a Light Pollution Imaging Filter into the optical path.
Performs over a wider spectral range than most telescopes, from 390-800 nm, so more of the light passing through the astrograph is in sharp focus.
Advanced VX, the most compact and portable of Celestron’s German equatorial mounts, offers a maximum instrument capacity of 30 lb with the same rigidity as our larger mounts and minimal flexure.
This mount offers every feature an astroimager wants: PEC, an autoguider port, the ability to image across the meridian, and more.
NEW dual saddle plate accommodates both the narrow CG-5 and larger CGE dovetail.
Accessories included: M42 camera adapter, C-thread camera adapter, and fan battery pack.
OPTICAL TUBE INFO:
Rowe-Ackermann Schmidt Astrograph
Central obstruction diameter
93mm (3.66") (46% of aperture diameter)
Light Gathering Power (Compared to human eye)
0.68 arc seconds
0.57 arc seconds
22mm (.86") Ø, 3.15°
32mm (1.26") Ø, 4.6°, only minimal performance loss at edge of FOV
390 - 800 nm
< 4.6 μm RMS across image circle
93% at 11mm (.43") off-axis
46mm (1.81") Ø
Back focus with included camera adapter
Back focus from top of threaded collar
Optical Tube Length
Optical Tube Diameter
Ultra-Stable Focusing System
Optical Tube Weight
17 lbs (7.7 kg)
Air-cooling system, integrated filter mount
M42 camera adapter, C-thread camera adapter, fan battery pack
CGE Dovetail Bar
Instrument load capacity
30 lbs (13.6 kg)
Height adjustment range (includes mount and tripod)
1118mm - 1626mm (44" – 64")
Tripod Leg Diameter
50.8mm (2") Stainless Steel
Latitude adjustment range
7° - 77°
Mount Head Weight
17 lbs (7.71 kg)
18 lbs (8.16 kg)
Weight of Counterweights
1 x 12 lbs
9 slew speeds - max speed 4°/second
Sidereal, Solar and Lunar
EQ North & EQ South
Dual saddle plate (CG-5 and CGE saddle)
Number of Auxiliary ports
3 Aux ports (1 hand control and 2 AUX ports for optional accessories)
Yes, input on Hand Control
12V DC 3.5A (tip positive)
DC servo motors
2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Periodic Error Correction
Computerized Hand Control
NexStar+ hand control with LCD display, 19 fiber-optic backlit LED buttons
40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Celestron's Starry Night Special Edition Software, SkyPortal App
Total Kit Weight
47 lbs (21.31 kg)
Advanced VX Equatorial Head| Tripod| Accessory Tray|1 x 12 lbs counterweight| NexStar+ Hand Control| DC Power Cable (plugs into cigarette lighter socket)
Recommended for the CELESTRON Advanced VX 8" Rowe-Ackermann Schmidt Astro