Open the camera back, fire the shutter on B and look for a hair or piece
of lint.
_________________________________
John Hermanson www.zuiko.com
Camtech, Olympus Sales & Service since 1977
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631-424-2121 For Free Olympus manuals,
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_________________________________
----- Original Message -----
From: "R. Jackson" <jackson.robert.r@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Monday, December 02, 2002 9:27 PM
Subject: Re: [OM] Lens flaw
>
> On Monday, December 2, 2002, at 06:04 PM, dreammoose wrote:
>
> > So you haven't tried it yet since removing the hair from the back of
> > the lens?
>
> Nope. I'm going to use it Wednesday a little, though.
>
> > Do you have any other Oly bodies to see if it shows up on a different
> > body?
>
> Yeah, I just recently bought a 4T, which is what I'm planning to use
> Wednesday.
>
> > It could still be something in the mirror box that isn't in the light
> > path from the longer lenses but sticks into the path of the wide
> > angle. Contary to what others have suggested, it doesn't have to be
> > actually touching the film, just nearby.
>
> Last night after that discussion I looked around inside my OM-1n and
> didn't really see anything that could have been a problem. I need to
> shoot some more film through it, though, and see what happens. I'm just
> hung up on the new camera right now and can't find much time for the
> old girl. ;-)
>
> > The example you provided is shot in bright light. I can't tell where
> > the lens is focused, but closer stuff seems maybe sharper than distant
> > stuff. A 28mm lens stopped way down has a lot of depth of field. If it
> > is focused in mid or close range, something on a lens hood or even
> > sticking out from the filter threads, etc. could possibly give an
> > almost in focus image on the film. When you look through the
> > viewfinder, the lens is wide open, with less DOF, so you wouldn't
> > easily notice something like that through the viewfinder. Remember
> > that in a retrofocus WA design, the front of the front element can be
> > quite a distance in front of the optical nodes.
>
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