In stock
Center thickness, mm: 8.45
Centration error: <5 arcmin
Clear aperture: >90
Coatings: uncoated
Dimensions tolerance, mm: +0/-0.1
Dimensions, mm: 60 x 50
Material: HK9
Protective chamfers: 0.2-0.3 mm x 45°
ROC S1, mm: -51.67
Surface quality, S-D: 40-20
Thickness tolerance, mm: ±0.2
Centration error: <5 arcmin
Clear aperture: >90
Coatings: uncoated
Dimensions tolerance, mm: +0/-0.1
Dimensions, mm: 60 x 50
Material: HK9
Protective chamfers: 0.2-0.3 mm x 45°
ROC S1, mm: -51.67
Surface quality, S-D: 40-20
Thickness tolerance, mm: ±0.2