Frequently Asked Questions

The Union Optic Penta Prism is available with a protected aluminum reflective coating or a single layer MgF2 AR coating at visible wavelengths.

The Union Optic Penta Prism is made of BK7 Grade A optical glass and has a dimension tolerance of ±0.2mm.

A Penta prism is used to deviate an incident beam by 90 degrees without inverting or reversing it.

The deviation tolerance of the Union Optic Penta Prism is less than 30 arc seconds.

The surface quality of the Union Optic Penta Prism is 60/40 scratch and dig.

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