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FAQs

Ask LensationHere are a few questions about Optics and about us
that we're been asked every now and then.

 

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1 How can two lenses with the same focal length have different viewing angles?
2 How large is 1/2 inch ?
3 Are you Manufacturer or just Dealer?
4 How to get the focal length from the field of view?
5 How to distinguish C- and CS-Mount with a quick test?