Material |
BK7 Grade B Fine Annealed |
Dimensions |
MM |
Diameter Tolerance |
±0.10mm |
Thickness Tolerance |
±0.10 mm |
Clear Aperture |
85% |
Surface Quality |
60-40 Scratch-Dig |
Parallelism |
< 3 Arc Minutes |
Coating |
Uncoated (See Coating Chart for Available Options) |
* All dimensions are in mm |