Rolland,
I think that this idea belongs to the list of "miths" about EOS IR photo,
(together with "possible effects of the ECF on IR films" and "IR transparent
camera backs").
IR is inherently difficult to meter because the light meter on the EOS's are
calibrated for visible light. Also, they are sensible to IR radiation and are
filtered to avoid damage. For IR photography the best you can do is meter
without the filter, apply the filter factor to the exposure (now in M mode) and
*bracket*... as you metered 'visible' light, there's no real reference on how
much IR is there.
Sunny days are the best to try this technique. Try on misty or overcasted days
and you'll be asking for trouble (and the IR effect will be milder, anyway).
Sunset & Sunrise are very rich in IR as well as incandescent lamps ('normal' &
halogen)
Check out out 'ListMaster' homepage for LOADS of info about IR.
http://www.a1.nl/phomepag/markerink/mainpage.htm
Have fun,
Gerard.
PS: BTW, I've taken most of my IR with a EOS50E and a 28-135IS...
"Elliott, Rolland" wrote:
> Someone told me that you shouldn't use IS lenses with infrared film because
> the Image Stabilization electronics use infrared LED's (light emitting
> diodes) that cause flare and wierd exposure problems with IR films. Any
> truth to this?
>
> Peace, Rolland
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