There is a lot in the archives about this subject. Briefly, I
discovered this problem myself a few years ago. I contacted Olympus
America, Pat MacFarlane to be precise. He was quite helpful and said
"Sure, the factory can make flat pressure plates special order." So he
ordered 6 and 6 months later they showed up and I bought 1. Sometime
later, someone else tried to buy one from Oly Amer, but apparently the
parts dept could not find them. Mine was $60.
Moral, if u don't mind paying thru the nose, contact Oly in the UK and
have them special order one. Don't take no for an answer.
george
Dirk Wright wrote:
>
> >I wonder if anyone can help me out in finding a new film pressure
> plate for
> >my OM1n MD. My The plate in my camera at the moment is fine for normal
> >photography, but recently i started taking infrared photos. I have
> been
> >using Kodak High-speed Infrared film which has no anti-halation layer.
> This
> >allows mysterious halo effects to be produced. The halo effects are
> caused
> >by infrared light going through the film and then bouncing of the film
> >pressure plate back into the camera. As many of you know the standard
> OM1
> >plate is dimpled. The dimple pattern shows up faintly on the film and
> is
> >more noticeable on the print.
> >
>
> I've used kodak's HIE in my OM1. I noticed the halos but not the
> dimbles. I'll look closer next chance I get. My only suggestion
> regarding a plate is modify one on another camera back and use it for
> HIE only. I think that if you cover the plate with a material that
> absorbs IR, then the halos could be reduced. There is no factory
> solution, sorry.
>
> Have you joined the IR mailing list? The IR FAQ may address this also,
> I dunno.
>
> Have you tried putting a polyester filter between the film rails behind
> the shutter? Many of the 35mm IR shooters do that, it doesn't effect
> the dimple problem but lets you use any lens you like without having to
> buy IR filters for each one.
>
> Be seeing you.
>
> Dirk Wright
>
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