Frequently Asked Questions

The property of constant deviation means that the 90º deviation angle applies to all rays transmitted by the effective aperture, regardless of their angle with respect to the optical axis.

Penta Prisms deviate a beam by 90º without inverting or reversing the image.

The dimensional tolerance of Penta Prisms is + 0.000", – 0.010".

Materials used to make Penta Prisms are BK7, UVFS, FS, CaF2.

The angular deviation of Penta Prisms is ≤ 3 arc minutes.

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