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Astromania 2 Field flattener - Provides Perfect Image Flatness for Your Astronomy Photos
Field flattener for refractors, suitable for telescopes from f4 to f8. M48 thread for complete aperture illumination at 2, room for accessories between - 109mm of back focus. Field curvature is a common optical defect that is not noticeable with visual observing or photography using small chips. Conjure astronomy photos with pin-sharp stars right out to the outer edge of the image field. Excellent multi-coating on lenses. Dimensions 5 x 2.75 x 3 inches, Weight 6.3 ounces, model number Rank Telescope Eyepieces 817, Is Discontinued No, Available July 4, 2016, Manufacturer Astromania, Brand Astromania

Price is $240.00
Price: $239.99