FF90 APO Flat-Field Apochromatic Refractor/FF90 APO Bundle M54 adapter designed to grow with your

designed to grow with your ideas and expand what’s possible under the night sky

Please watch the picture below carefully

Ensure that the bracket is flush with the EAF mounting surface without any gaps

the ideal choice for astronomy enthusiasts

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 designed to grow with yourLightweight & 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