Here`s an excerpt from the faq:
P3) What are some special considerations when using IR Film?
Since infrared (IR) film has no anti-halation backing, light can
and does pass right through it to the film pressure plate. This
causes no problems when the pressure plate is flat, but the
pressure plates on OM cameras are dimpled. These dimples act
like little mirrors (yes, something anodized gloss black is
*very* reflective in IR :) to focus the light, thus giving you
little spots on your negatives. Some folks report more problems
with this than others. Olympus America is reputed to now stock
replacement flat pressure plates in small numbers for those
folks who use IR film often. The rumor is that they cost ~$70
US.
Thanks to GMA <george@xxxxxxxxxxxxx> and others.
and I saw Erwin Voogt`s posts from 16/08/2001 about infrared. From this
I take it that it is ok to use the standard pressure plate as long as I
keep the camera in the case most of the time. Are there any other
precautions when using infrared B+W film with the OM-system?
How is processing at the lab in regard to quality and price? The same as
standard B+W?
Regards,
Arild E. Vengen
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