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Digital BW, The Print

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RE: [Digital BW] Digital contrast filtration

2005-07-20 by Paul D. DeRocco

> From: Gary Brown
>
> My 20D has had the IR blocking filter removed and replaced with a clear
> filter. This makes the camera very sensitive to IR. Even with an
> IR filter
> (usually a lee 87) which is opaque in front of the lens, on a sunny day I
> can shoot 160th at F11 at ISO 100. It's not as easy to use as
> dedicated IR
> camera, because you have to have the camera on a tripod, compose the shot
> then slip the filter in front of the lens. It may not be as
> convenient, but
> I have the flexibility to use different filters for different looks.
>
> If you want more details, e-mail me and I'll respond off list.

This seems reasonably on-topic to keep on-list.

Who did your IR mod? Do you have to screw on an IR block filter for normal
photography?

--

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

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