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Home / TELESCOPE ACCESSORIES / Optical Enhancements: Focal Reducers, Field Flatteners and Coma Correctors / Focal Reducers/Field Flatteners / Televue

Used in prime-focus imaging, reducers increase photographic speed while flatteners decrease image curvature away from the center.

Important Note: The following products were all designed for an optimum 55mm back focus. (Distance from flange surface to film or CCD plane). If you use a CCD, be sure the spacing between flange and CCD is 56mm +/-2mm for best results.

Users of the NP101is/NP127is scopes should also see Imaging System Accessories for LCL-1069 corrector.

Tele Vue Tele Vue NPR-2073 0.8x Reducer for NP Scopes
Introducing the 0.8x Reducer for NP Scopes optimized fopr full-frame imagers!
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Tele Vue NPR-2073 0.8x Reducer for NP Scopes
$495.00
Televue 0.8X Reducer RFL-4087 0.8x Reducer/Flattener
Flatteners clean-up focus away from the center of an image. The 0.8x Reducer/Flattener for 102 Scopes reduces telescope focal length to 80% while flattening the field for up to 35mm frame formats. Although optimized for TV102 scopes, it also works with a
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Televue 0.8X Reducer RFL-4087 0.8x Reducer/Flattener
$390.00
Televue TRF-2008 0.8X Reducer - 400mm - 600mm Telescopes
Model TRF-2008 0.8x Reducer/Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380mm f/5.0 for flat field, fast photography.
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Televue TRF-2008 0.8X Reducer - 400mm - 600mm Telescopes
$353.00
Televue RAD-1074 Reducer Adapter
Model NPR-1073 is a 0.8x Reducer for all NP and NPis scopes used with imagers of up to APS-size format.
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Televue RAD-1074 Reducer Adapter
$60.00