Frequently Asked Questions

The Surface Quality of the Half Penta Prism is 60-40 scratch and dig.

The Angle Tolerance of the Half Penta Prism is <3 arc minutes.

A Half Penta Prism is exactly half cut from a Penta Prism.

The Dimension Tolerance of the Half Penta Prism is ±0.2mm.

Half Penta Prism is widely used in telescopes.

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