ZWO FF131 APO
Key specifications
| Aperture | 131 mm |
|---|---|
| Focal length | 983 mm |
| Focal ratio | f/7.5 |
| Optical design | Quadruplet APO |
| Weight | 7.9 kg |
All specifications
| Focuser type | 3" rack-and-pinion, 1:10 dual-speed, 360° rotator |
|---|---|
| Tube length | 878 mm |
About
131 mm f/7.5 flat-field refractor with a four-element air-spaced apochromatic design and a 44 mm image circle, including a four-section photographic extension tube and M48/M54 rear adapters.