Pentaprism Hap Optics offers a wide range of different materials and size of pentaprism.

Specifications:
Material: BK7 Grade A optical glass
Dimension Tolerance: ± 0. 25mm90 deg
Deviation Tolerance:
Standard series: < 30 arc seconds
Precision series: Up to 5 arc seconds

Flatness:
Standard series: Lambda/2 at 632. 8 nm
Precision series: Up to lambda/4 at 632. 8 nm
Reflectivity: R > 95% per face from 630 to 680 nm
Surface Quality: 60-40 scratch and dig

Remark: If you want to know more detail, please download product list file.