60F Flat-FieldThe Askar 60F is an OTA with an aperture of 60 mm, a focal length of 408mm, and a native focal ratio of F6. 8, designed for astronomy enthusiasts who prioritize portability and high image quality. The Askar 60F features a quadruplet optical lens design (three front elements and one rear element), including one piece of ED glass, which can effectively reduce chromatic aberration. The Askar 60F supports 44mm full frame imaging with great performance of
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