The Vixen SD Flattener HD Kit is designed for astrophotographers who want to achieve ultra-sharp images across the entire field when using DSLR cameras with full-frame sensors. This kit is specifically made for use with Vixen’s SD81S, SD103S, and SD115S optical tubes. It includes a high-performance flattener lens and the necessary connecting rings (Spacer Ring SD81 and EX Tube 66) to ensure compatibility and optimal performance.

The Vixen SD Reducer HD Kit is a high-performance accessory set designed for prime focus astrophotography with Vixen SD81S, SD103S, and SD115S optical tubes. This kit is ideal for users who want to achieve ultra-sharp images across the entire field of view when using DSLR cameras with full-frame sensors. It includes a high-quality flattener lens, a reducer lens, and connecting rings (Spacer Ring SD81 and EX Tube 66) to ensure compatibility and optimal results.

The Vixen Teleconverter Extender PH Kit for R200SS is a high-quality extender lens system made in Japan and specifically designed for astrophotography. This kit transforms the R200SS parabolic mirror Newtonian reflector, converting it from an f/4 system to an f/5.6 astrograph by increasing the focal length from 800 mm to 1120 mm (a 1.4x extension). The optical design consists of four elements in three groups, effectively correcting coma errors and delivering sharp images all the way to the edge of the field of view.