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Feature · Product Review

71F Flat-Field Diagonal Compared to FMA180

71F Flat-Field Diagonal Compared to FMA180The Askar 71F is an OTA with an aperture of 71mm, a focal length of 490mm, and a native focal ratio of F6. 9. The Askar 71F adopts a quadruplet air spaced APO lens design, including one piece of ED glass which can effectively reduce chromatic aberration. The Askar 71F supports 44mm full frame imaging with great performance of the surrounding star points. The Askar 71F is a self flattened design that allows users to avoid calculating the back focus and

SKU: 68818870906 · From clintoncounty708.com

4.1
USD299.50 USD329.50

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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

Description

Compared to FMA180

The objective lens features a sextuplet air-spaced APO design and includes two pieces of ED glass

4kg Rear-end thread type M78×1-M54×0

C92  |  ASKAR SQA55 +  ZWO ASI2600MM Pro

71F Flat-Field Diagonal Compared to FMA180The Askar 71F is an OTA with an aperture of 71mm, a focal length of 490mm, and a native focal ratio of F6. 9. The Askar 71F adopts a quadruplet air spaced APO lens design, including one piece of ED glass which can effectively reduce chromatic aberration. The Askar 71F supports 44mm full frame imaging with great performance of the surrounding star points. The Askar 71F is a self flattened design that allows users to avoid calculating the back focus and

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