FF90 APO Flat-Field Apochromatic Refractor/FF90 APO Bundle M54 adapter EOS-T2 adapter without T2-extender is

EOS-T2 adapter without T2-extender is suitable for 17

the FF131 APO offers precise control with a 1:10 coarse & fine focus adjustment mechanism

Quantum efficiency(QE) -Main sensor

For curved focusers like the one in the image above

Please refer to the diagram below to understand how ASI585MC/MM Air cameras match with various telescope image circles

FF90 APO Flat-Field Apochromatic Refractor/FF90 APO Bundle M54 adapter EOS-T2 adapter without T2-extender isLightweight & Compact Designed for Both Visual Observation and Astrophotography *Focus can be achieved within a back focus range of 4575 mm, measured from the M54M48 interface shoulder. Main Features Flexible Connectivity for Multiple Configurations Uniqueness 1. Lightweight & Compact The ZWO FF90 APO features a 90 mm aperture and 609 mm focal length (f 6. 8), offering an excellent balance between portability and performance. The optical tube weighs