Product name: Penta Prism

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1) Dimension tolerance: ±0.2mm
2) Deviation tolerance: <3", <5", <10", <30", <1', <3', <5'
3) Surface quality: 60 / 40
4) Flatness: λ/2 per inch at 633nm
5) Coating: uncoated, AR coated or upon requests
6) Material: BK7 grade A, or other optical glass upon requests

The above parameters are only for some optics' reference basis.  

Concrete specifications will be different according to different materials, dimensions and customers request. Lower Price for lower precision is available. We can also manufacture according the drawings of customers