9518461

Retardation tolerance: λ/100 @ 20 °C
Retardation: λ/4
Wedge / Parallelism error: <3 arcmin
Wavelength, nm: 6500
Surface quality, S-D: 60-40
AR coatings: both sides
Mount: Ø25.4 mm black anodized aluminum mount
Clear Aperture: >10
Transmitted wavefront distortion, PV: <λ/8 @ 632.8 nm
Retardation order: 0