250-600 nm, 450-700 nm, 480-20000 nm

Square

12.7 x 12.7 mm, 19.05 x 19.05 mm, 25.4 x 25.4 mm, 50.8 x 50.8 mm

3.1 mm, 4.57 mm, 6.0 mm, 12.7 mm

Borofloat 33

λ/10 at 632.8 nm

0-15°

≥ central 80% of diameter

±0.25 mm

45° ±15°

See How to Clean Optics