Corrective optics are a very important component, especially in astrophotography. They turn almost every refractor, Newtonian or other telescope into an astrograph. They flatten the image field, shorten the focal length or correct system-related image errors.
TS Photoline 0.8x Focal Reducer and Corrector for Refractors from 102 mm Aperture The corrector increases the speed of your refractor telescope and reduces the focal length for a larger field.
TS Photoline 0.8x Focal Reducer and Corrector for Refractors up to 102 mm Aperture The corrector increases the speed of your refractor telescope and reduces the focal length for a larger field.
Field corrector and focal reducer for compact 70 mm and 72 mm APO or ED refractors for astrophotography, for example TS 70 mm f/6 ED or TS SD Apo 72 mm f/6
TS 1.0x Photoline full-frame corrector for APO and ED refractor telescopes from 80 mm to 155 mm aperture and larger with integrated fine tuning - no more adapter battle!