9524652

Surface quality, S-D: 60 - 40
Material: Neutral density glass
Wedge / Parallelism error: <3 arcmin
Transmitance, %: 40
Thickness, mm: varies
Clear Aperture: >90
S1 Flatness, PV IR S2 Flatness, PV: <λ @ 632.8 nm
Dimensions, mm: Ø25.4 (+0/-0.2)
Wavelength, nm: 400-700
Protective chamfers: 0.1-0.25 mm x 45°
Optical density: 0.4