9588308

90 deg angle tolerance: +/- 1 arcmin
Clear aperture: >80 %
Coatings on hypotenuse: Aluminium coating
Dimensions A x B x C, mm: 12.7 x 12.7 x 12.7 mm (+0/-0.2 mm)
Material: BK7
Pyramidal tolerance: +/- 1 arcmin
Protective chamfers: 0.2-0.3 mm x 45 deg
Surface flatness, S1/S2/S3: Surface quality, S1/S2/S3: 40-20 S-D