9402300

Surface quality, S-D: 60-40
AR coatings: both sides
Wavelength, nm: 4500
Wedge / Parallelism error: <3 arcmin
Transmitted wavefront distortion, PV: <λ/8 @ 632.8 nm
Retardation: λ/4
Retardation tolerance: λ/100 @ 20 °C
Retardation order: 1
Clear Aperture: >10
Mount: Ø25.4 mm black anodized aluminum mount