9400240

Centration error: <3 arcmin
Clear aperture: >90
Coatings: R>96%@550-1100
Dimensions tolerance, mm: (+0/-0.1)
Dimensions, mm: Ø20
Material: BK7
Metallic coating on S1: Ag
Protection Coating: SiO2
ROC S1, mm: -100
S1 Surface quality, S-D: 20-5
Thickness, mm: 5