9794269

Protective chamfers: <0.25 mm x 45°
Material: UVFS (Corning 7980 0F)
Surface quality, S-D: 40-20
Surface irregularity (spherical surface), PV: <λ/4 @ 632.8 nm
Surface flatness (flat surface), PV: <λ/4 @ 632.8 nm
S2: AR(R<0.2%)@800nm
S1: AR(R<0.2%)@800nm
Clear Aperture: >90
Centration error: <3 arcmin
Focal length, mm: +300
Edge thickness, mm: 2 (±0.1)
Dimensions, mm:   Ø25.4 (+0/-0.1)
Wavelength, nm: 632.8
Coatings:
ROC S1, mm: +137.1 ±0.5%