ZWO FF90 - 90mm f/6.8 Flat Field APO Refractor - FF90-APO Lunt Solar Telescopes The peak QE in the

The peak QE in the NIR around 800nm is as high as the peak QE in the visible wavelengths

Comfortable Plastic Handle for carrying

Tension Control Handle allows users to add or reduce tension

The major top line of this cover is 60" while the major height is 60"

ZWO FF90 - 90mm f/6.8 Flat Field APO Refractor - FF90-APO Lunt Solar Telescopes The peak QE in theZWO FF90 APO Flat Field Apochromatic Refractor Main Features Flexible Connectivity for Multiple Configurations 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 just 3. 92 kg, with a total system weight of 4. 52 kg including mounting rings and dovetail plate. Four Element Optical Design The FF90 APO features a