In stock
Clear Aperture: >90
Major axis, mm: 71.84 (+0/-0.1)
Material: BK7
Minor axis, mm: 50.8 (+0/-0.1)
Parallelism error: <30 arcsec
Protective chamfers: <0.25 mm x 45°
Surface quality, S-D: 40-20
Thickness, mm: 10.0 (±0.1)
Major axis, mm: 71.84 (+0/-0.1)
Material: BK7
Minor axis, mm: 50.8 (+0/-0.1)
Parallelism error: <30 arcsec
Protective chamfers: <0.25 mm x 45°
Surface quality, S-D: 40-20
Thickness, mm: 10.0 (±0.1)
