The support rings PLUS 131mm can be used with different brands telescopes (for example refractors 100-130mm in diameter) with tube approximately 131mm in diameter. With this rings you can install both above and below the optical tube our PLUS plates or even guide rings. Compatible with telescopes by various brands, such as SkyWatcher ESPRIT 100ED.
Like all the other elements of the PLUS series, these rings are made with high mechanical precision (built with CNC machines from aluminum block) and specially designed to enable you to easily install other mechanical elements such as plates, guide rings or dovetail clamps.