In stock
90 deg tolerance: ±2 arcmin
Clear Aperture: >90%
Dimenssions, mm: 21 x 21 x 21 (+0/-0.2 mm)
Material: N-SF66 equivalent
Pyramidal error: ±2 arcmin
S1 Flatness, PV IR S2 Flatness, PV: λ/4 @ 633 nm per inch
Surface Quality: 40-20 S-D
Clear Aperture: >90%
Dimenssions, mm: 21 x 21 x 21 (+0/-0.2 mm)
Material: N-SF66 equivalent
Pyramidal error: ±2 arcmin
S1 Flatness, PV IR S2 Flatness, PV: λ/4 @ 633 nm per inch
Surface Quality: 40-20 S-D
