- For multiple telescope designs, produces a flat field over 90 mm image circle!
- Four element Fluorite Flat Field Converter is a diffraction-limited APO
- Fluorite design eliminates chromatic aberration
- Covers up to a 6 cm x 7 cm format at up to 8X magnification
- Works equally well with Newtonian, Schmidt-Cassegrain, Ritchey-Chretien and APO refractor telescopes