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| Electronics > Camera & Photo > Accessories > Telescope Accessories > Eyepieces |
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| Product Description Our handy field flattener resolves the issue by providing excellent field correction while preserving the focal length attributes of your scope. Designed for use with refractors with focal lengths of 400mm to 650mm and focal ratios of f/5 to f/7.Optically fast refractors used for astro-imaging are often plagued by significant field curvature, which is especially noticeable when using CCD imagers with APS-C sized and larger sensors, or DSLR cameras. Orion Field Flattener for Short Refractors Shipping Weight: | ||||||||
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