Date sent:        Thu, 12 Jun 1997 11:02:03 -0700
From:             GMA 
To:               infrared@a1.nl
Subject:          Re: Infrared-Digest V #56
Send reply to:    infrared@a1.nl

>Peter Smith wrote: 
> You can also add Olympus OM-1 's to the list . I thought the pattern
> looked  the same as the pressure plate and was related to the cloth
> shutter curtain also . I then tried a Leica M-4p , which has a cloth
> shutter also, but no pattern visable on the negs . I didn't check to see
> if the Leica had a dimple on the pressure plate . Anyone else have this
> problem with other camera's ?  The Nikon F2  I now use has a smooth
> pressure plate with rivets outside the image area .
> 
> Peter Smith
> psphoto@baynet.net
> 
>

Yes, in fact all OM bodies have the dimpled plate.  I have 3 of 'em.
I've been using an FE-2 with one (55 micro) lens as my IR camera because
it has a smooth plate.  Been getting good results recently too, thanks
in part to info from Jan's page and links. 

All is not lost for Olympus though.  I spoke to their service dept in NY
about the problem. He special ordered some smooth IR plates from
Olympus, Tokyo.  I'll be getting at least one of 'em so I can use all 10
of my Zuiko lenses in IR.

george







Date sent:        Fri, 22 Mar 2002 14:09:56 -0800
From:             Joshua Putnam 
To:               infrared@a1.nl
Subject:          Re: cameras for HIE ?
Send reply to:    infrared@a1.nl

Brian Midili wrote:

> hello All.
> i've got a roll or two of HIE i've been itching to shoot,  but it seems 
> all of the cameras i have available to me have the 'dimpled pressure 
> plate issue'.
....
> Olympus OM-1n
> Olympus OM-2s

I have used HIE in every single-digit OM except the OM-3.  The 
dimpled pressure plate is only a problem with 87 or deeper 
filters, and only on bright scenes, at least in my experience. 
Never had any trouble with it using 70, 29, or 25 red filters.

-- 
           josh@phred.org is Joshua Putnam
             http://www.phred.org/~josh/
         Updated Bicycle Touring Books List:
   http://www.phred.org/~josh/bike/tourbooks.html

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