Digital BW, The Print

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.


Gary
baffin@...
www.pbase.com/garyallenbrown


----- Original Message ----- 
From: "colingruk" <cconway@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Tuesday, July 19, 2005 10:56 PM
Subject: Re: [Digital BW] Digital contrast filtration


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Gary Brown"
<baffin@c...> wrote:
> Richard:
>
> You might want try a 29 red filter. I use that filter on a 20D
modified for
> IR.

Gary,  Could you please explain?  What filter is used in the IR
modification of your D20?

Colin





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