In stock
Centration error: <3 arcmin
Clear aperture: >90
Dimensions tolerance, mm: +0/-0.2
Dimensions, mm: 20
Edge thickness, mm: 6
Focal lenght, mm: -2500
Material: BK7
Protective chamfers: <0.25 mm x 45°
ROC tolerance, %: ±2
S1 Surface figure, PV: <λ/8 @ 632.8 nm
S1 Surface quality, S-D: 20-10
S2 Surface quality, S-D: 20-10
Thickness tolerance, mm: +0/-0.2
Clear aperture: >90
Dimensions tolerance, mm: +0/-0.2
Dimensions, mm: 20
Edge thickness, mm: 6
Focal lenght, mm: -2500
Material: BK7
Protective chamfers: <0.25 mm x 45°
ROC tolerance, %: ±2
S1 Surface figure, PV: <λ/8 @ 632.8 nm
S1 Surface quality, S-D: 20-10
S2 Surface quality, S-D: 20-10
Thickness tolerance, mm: +0/-0.2
