Q & A

How do I verify my filter matches the vendor's spectrum?

Verifying that an optical filter matches⋯
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How much blocking OD do I need outside the passband?

When selecting optical filters, one of t⋯
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Longpass vs shortpass—what's the practical difference?

When working with optical filters, you&#⋯
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Can you make custom large-format filters up to 450 mm?

At KUPO Optics, we frequently get asked:⋯
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