9398899

Clear aperture: 90
Dimensions tolerance, mm: (+0/-0.1)
Dimensions, mm: 50.8
Material: BK7
Protective chamfers: 0.1-0.2 mm x 45°
S1 Flatness, PV: <λ/6 @ 632.8 nm
S1 Surface quality, S-D: 20-10
S2 Flatness, PV: <λ/6 @ 632.8 nm
S2 Surface quality, S-D: 20-10
Thickness tolerance, mm: ±0.1
Thickness, mm: 8
Wedge / Parallelism error: <30 arcsec