STSFFFRA08S

SF-FFRA-08-S

Starfield

Speed up your telescope's focal ratio and achieve edge to edge sharpness with the 0.8x Adjustable Reducer for 70-102mm Refractors from Starfield. This 2" combination reducer/flattener has up to 17mm of adjustment for back focus, saving you the trouble of using adapters and spacers with your accessories. Simply subtract the width of any filter wheels, rotators, etc. from your back focus distance (usually 55mm) and adjust the reducer accordingly. Filters can be added inside the reducer. Its three lenses, including one extra-low dispersion element, are antireflection multicoated and the inside of the reducer is blackened. The reducer has an M63 x 1 external thread for the telescope side and M48 x 0.75 external thread on the camera side.