Search our products:     Televue 0.8x Reducer Field Flattener for 800-100mm focal length refractors 102ED 120ED TV85 TV102 Code: RFL-4087 RFL-4087 A field flattener and 0.8X focal reducer for 800mm - 1000mm focal length refractors for fast flat field photography. Sucessfully tested on 102ED scope with 714mm focal length. Produces a wide flatter field with minimal or no edge distortion when using APS chip size CCD cameras with 35mm chip sizes or DSLRS for astro photography. Also good to just speed up the focal ratio of your scope if you want shorter exposure times. Works with Televue 102 refractors in that focal length range and several other brands such as Astrotech 102ED (shorter focal length but successfully tested) Skywatcher 100ED 120ED TV85 TV102 and other makes using the same lens components. Note: You need to order the RAD-1074 Televue Reducer Adapter body for 2 inch focusers to use the RFL-4087 with a 2 inch pushfit focuser.   £ 225.00         (c) Altair Astro Limited, all rights reserved.       Sales Terms & Conditions; Privacy policies