Orion 8893 Field Flattener for Short Refractors
- 9 years ago
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Orion 8893 Field Flattener for Short Refractors
Eliminate field curvature in short optically fast refractor telescopes with this handy 38mm clear-aperture fully multi-coated field flattener
Designed for use with 400mm to 650mm focal length refractors with f5 to f75 focal ratios
Optimizes your fast refractor telescope for astrophotography
Preserves focal length attributes of the attached refractor telescope while flattening the field of view
Requires 55mm of refractor telescope backfocus weighs 75 oz
Orion 8893 Field Flattener for Short Refractors
Eliminate field curvature in short optically fast refractor telescopes with this handy 38mm clear-aperture fully multi-coated field flattener
Designed for use with 400mm to 650mm focal length refractors with f5 to f75 focal ratios
Optimizes your fast refractor telescope for astrophotography
Preserves focal length attributes of the attached refractor telescope while flattening the field of view
Requires 55mm of refractor telescope backfocus weighs 75 oz