ZWO offers a 1-year warranty on the FF65 / 80 / 130 apochromats of the FF series.
The ZWO FF80 Quadruplet is a very compact apochromatic refractor for astrophotography with a corrected image field up to full frame and observation up to the highest magnification range. The telescope has an aperture ratio of f/7.5 with a focal length of 600 mm. The FF80 is a quadruplet design with two ED lenses, which provides excellent suppression of chromatic aberration.
With its integrated flattener, the FF80 offers great advantages for astrophotography: it illuminates full-frame sensors and ensures fine imaging with point-like stars on the axis. The apochromat comes with an extendable dew shield, a 3" focuser with 360° rotation, a Vixen/GP finder shoe and four different camera adaptors (M76, M68, M54 and M48). The tube itself weighs 3.9 kg, with tube clamps and rail the weight is 4.7 kg.
Back focus of the included camera adapters:
115 mm from M48x0.75 external thread
135 mm from M54x0.75 external thread
155 mm from M68x1 external thread
168.5 mm from M76x1 external thread
