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Re: [OM] OM Pin-hole photography problem - help!

Subject: Re: [OM] OM Pin-hole photography problem - help!
From: "jnetter " <jnetter@xxxxxxxxxxxxxxxx>
Date: Fri, 5 Dec 2003 14:18:53 -0600
I've achieved good exposure results with my OM-2n on auto with a pinhole cap 
(f185), even with velvia 50. An example is at
http://redwingmusic.com/photo/pinhole/pinhole2.html
Jim

>Date: Fri, 5 Dec 2003 19:36:25 +0200
>From: petertje@xxxxxxxxxxxxx
>Subject: Re: [OM] OM Pin-hole photography problem - help!
>
>Hi,
>
>> I decided to try pin-hole photography with my OMs recently... I bought a 
>> body cap with a drilled piece of stainless steel in the center. When I 
>> tried it out on my -4T, I expected a pretty long "open shutter" time, given 
>> the f/stop is on the order of 180 or so. To my surprise, almost every 
>> exposure I tried clicked off at about 12-14 seconds, regardless of what I 
>> pointed the camera at. Is there something I'm missing? Is there some tab or 
>> coupling pin on the back of the OM lenses that enables OTF metering - the 
>> modified lens cap obviously does nothing except engage the three bayonet 
>> lugs... Any suggestions on what I can do to make this work? I'm thinking 
>> about trying a short extension tube between the body and the cap...
>
>I've got exactly the same setup.  The good thing about mine, is that I know my 
>pinhole is 0.1mm, and about 5 cm away from the film, making it f512.  But I've 
>tried auto-exposure too, on slide, and it came out great on the first attempt. 
> Even better: when I turned the exposure compensation dial for an extra stop, 
>it came out over-exposed.  That was 8 and 16 seconds resp.
>
>Great little meter in the OM-4Ti :-)
>
>
>Peter.
>


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