DPReview.com is closing April 10th - Find out more

Sigma SD15 and IR Filter

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

Doppler9000 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 use of the word “filter” without more information is ambiguous. In common usage, for example, the term “UV filter” refers to one that blocks UV.

Agreed.

Not unlike "resolution" which means all things to all men ...

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

-- hide signature --

what you got is not what you saw ...

 xpatUSA's gear list:xpatUSA's gear list
Panasonic Lumix DMC-LX1 Sigma SD9 Panasonic Lumix DC-G9 Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Sigma 17-50mm F2.8 EX DC OS HSM +11 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow