FF80 Quadruplet APO
ZWO
$1,299.00
1 stores
The ZWO FF80 Quadruplet APO is a premium 80mm apochromatic refractor designed for both astrophotography and visual observation. Featuring a 4-element air-spaced quadruplet optical design with two extra-low dispersion (ED) glass elements, this telescope delivers exceptional color correction and minimal aberrations across the entire field of view. The innovative Petzval design provides inherent flat-field correction without requiring a separate field flattener, eliminating the complexity of calculating back focus distances and making setup straightforward for photographers. With its 600mm focal length at f/7.5, the FF80 is ideal for deep-sky and planetary imaging on full-frame and APS-C cameras, offering excellent optical performance combined with a compact, portable design that's popular among traveling astrophotographers.
Specifications
| Focuser Type | 3-inch Dual-Speed Rack-and-Pinion |
| Rotator | 360-degree manual rotator |
| Focal ratio | f/7.5 |
| Available Focal Reducer | 0.76x (converts to f/5.7, 456mm focal length) |
| Aperture | 80 mm |
| Image Circle | 44 mm |
| Weight (with accessories) | 4.7 kg |
| Central RMS Star Radius | 2.5 μm |
| Optical design | Quadruplet Air-Spaced Apochromatic (4-element, 3+1 configuration) |
| Focuser Ratio | 1% |
| Field Flattener Required | false |
| Weight (OTA Only) | 3.9 kg |
| Camera Adapters Included | M76, M68, M54, M48 |
| Focal length | 600 mm |
| ED Glass Elements | 2 |