Coma Corrector for Newtonian telescopes from f/6 and slower.

4 element corrector, which provides much sharper images in fast telescopes than the similarly priced coma correctors. Offers good performance at f/4.

An effective Newtonian corrector with better field illumination by M48 connection instead of T2. Upgraded version - better sharpness in the field.

This coma corrector can be placed completely inside a 2" focuser and offers a high grade of correction and a low degree of vignetting. The generous back focus of 70mm allows the use of off-axis-guiders.   M48 thread connection for good field illumination Especially fast Newtonian systems suffer vignetting when a T2 corrector is used. The short off-axis-guider can be connected directly and no back focus is wasted by adapters.   Specification Fully Multi-Coated Optic 50mm (2'') Barrel Fit 44mm of illuminated field diameter - even full format sensors can be used. 4 Element In 2 Groups Design Corrector Magnification Factor 1.1x Works For Newtonian From F/3-F/6 Internal Edge Darkened For Both Visual And Imaging Usage Long working distance (70mm) - enough space for off-axis-guiders and filters.   Included Items Coma Correcter Lens 2'' Nose Piece With 48mm Male Thread M48 T-Adapter