Diameter:
12 / 18 / 19.05 / 20 / 25 / 25.4 / 30 / 38.1 mm
Focal length:
25.4 / 38.1 / 41 / 50.8 / 63.5 / 76.2 / 88.9 / 101.6 / 190.5 mm
Diameter tolerance: +0.0 / -0.12 mm
Focal length tolerance: 1%
Wavelength: 10.6 um
Clear Aperture: > 90%
Surface Quality : 20-10 scratch and dig
AR Coating reflectivity: R < 0.5% @10.6 um