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Sigma SD15 and IR Filter

Started 6 months ago | Discussions thread
xpatUSA
xpatUSA Forum Pro • Posts: 23,016
Re: Sigma SD15 and IR Filter

D Cox wrote:

xpatUSA wrote:

Jhnns wrote:

I just found out myself

Well done!

Strictly speaking, an "IR filter" is one that passes IR but blocks visible light.

The Sigma "dust-cover" does the opposite, so some call it a "UV/IR blocking filter".

Some might be being pedantic, however.

Agreed ... they might.

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