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Quantum efficiency(QE) -Main sensor
the ideal choice for astronomy enthusiasts
Please watch the picture below carefully
the FF131 APO offers precise control with a 1:10 coarse & fine focus adjustment mechanism
We recommend our ASI1600/ASI174 mono camera for Ha solar imaging
FF90 APO Flat-Field Apochromatic Refractor/FF90 APO Bundle M54 adapter Quantum efficiency(QE) -Main sensorLightweight & 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
US$ 21.95
US$ 149.50
US$ 90.00
US$ 84.99
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