Diameter Available 2mm – 120mm

Diameter |Tolerance 0/-0.05mm

Thickness Tolerance /-0.05mm

Focal Length Tolerance /-1%

Surface Accuracy L/4 irregularity @632.8nm

Surface Quality 20-10 SD

Centration <3 arc min

Clear Aperture >90%

Bevel   Protective bevel

Material BK7, SF11 other optical glass

AR coating and BBAR