"Jay D. Washington" wrote:
>
> I'm going to try my first infrared photography(Kodak High Speed Black and
> White), and would like some advice. I plan on shooting desert landscapes
> and will most likely use a Wratten #25 equivalent red filter. The kodak
> guide says to use a film speed of 50, but I was just reading on a web page
> that I should meter before putting the filter on the camera. It seems to me
> the ISO setting of 50 should adjust for the filter. Am I correct, will my
> EOS 1v (to keep this on topic) meter correctly for the film with this filter
> on the lens and camera ISO set at 50. What about if I'm using an opaque (87
> or 87c) filter? What if I also use a polarizer?
>
> Any help is appreciated, JD
>
The 1v will meter correctly, TTL will meter for the light coming through
the lens, not what strikes the outside element. But ISO50 may over
expose somewhat. Try 100 and bracket 1/2 stop. Bracketing is the key
when shooting IR film. If you use an 87 or 87c, then you'd have to
meter before putting on the filter, of course. I'm not sure what effect
a polarizer would have, other than to further cut the amount of light
getting through to the film.
Skip
--
Shadowcatcher Imagery
http://www.shadowcatcherimagery.com
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