9349634

Retardation: λ/4
Surface quality, S-D: 60-40
Transmitted wavefront distortion, PV: <λ/8 @ 632.8 nm
Wedge / Parallelism error: <3 arcmin
Retardation order: 0
Mount: Ø25.4 mm black anodized aluminum mount
Clear Aperture: >10
AR coatings: both sides
Wavelength, nm: 5500
Retardation tolerance: λ/100 @ 20 °C