VC0.71X reducer shortens focal length from 1800mm (f/9) to 1278mm (f/6.4)
This Vixen Focal Reducer shortens focal length of the VC200L from 1800mm (f/9) to 1278mm (f/6.4).
Reducing the focal length increases the field of view and decreases the exposure time, dramatically increasing your density or signal-to-noise ratio.
Use the optional Vixen Direct Wide Photo Adapter 60 and the proper T-Ring or the Vixen Camera Adapter 43 and proper T-Ring if you'd like to mount your camera to the Focal Reducer.
The optimal distance of the reducer to the plane of a CCD camera is 63.5mm. Using a T-ring with the Vixen Wide Photo adapter, the distance from the flange of the T-ring to the focal plane is 55mm.