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Digital BW, The Print

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RE: [Digital BW] digital IR conversion

2005-06-02 by Paul D. DeRocco

> From: koloshor
>
> That's because there's no such thing as a "Sigma conversion". It
> doesn't need one ;)
>
> On the Sigma SD10, the IR blocking filter is incorporated in an
> optical window (called the "dust protector") right behind the lens
> mount. It is removable for cleaning. All you have to do is remove one
> screw, put the dust protector someplace safe, and you're good to go.
> The camera even comes with the screwdriver (and the procedure for
> removing the dust protector is documented in the manual).
>
> So, in the field, in 2 minutes flat, you can switch your Sigma SD10 to
> IR, or back to visible light.
>
> The IR performance is excellent. The Sigma forum on dpReview maintains
> a large user gallery on pBase, and you can see many fine examples there.
>
> I typically tell people the SD10 is the best camera currently on the
> market for IR. And it's very good for near UV, too.

Is this filter in the viewfinder path, or behind the mirror? It would be
difficult to use the camera if it was in front. At least with lens mounted
filters you can frame the picture on a tripod and take a meter reading, and
then put the filter on.

I've considered getting a Sigma, to experiment with, but all my lenses are
Canon. Some guy in Asia has been working on an adapter, but so far hasn't
succeeded.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

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