[alt-photo] Re: pinhole question

[Kurt Nagy]

I have thus camera and have used it several times with no issue on the vignette.  You say you filed the internal ring, had you done anything prior?  Mine is pretty much stock except I locked the stock shutter in place with a screw, I only have to take the lens cap off to expose now.  You have to take off the front and there is a screw slot that a small computer screw fits in perfectly and locks the shutter open.

Back on your issue though, I believe the vignette actually comes from the outside ring as I've seen people shave that down to get rid of it (shrug). 



On Sep 28, 2011, at 6:45 PM, fdfragomeni at gmail.com wrote:

> Francis,
> 
> If the vignetting is only on one side as you describe the my bet is that is it indeed the travel of the shutter. Is the vignetting always on the same side? When opening up the Holga, does the shutter always swing from the same side (some of the plastic cameras have shutters that alternate from which direction they swing) and if so is it the same side as the vignetting on the negs? If so then this is probably the root of the problem.
> 
> P.S. I'll see a friend tonight who has one so I'll ask him and I'll try to take a look at the camera.
> 
> -Francesco
> Sent via BlackBerry by AT&T
> 
> -----Original Message-----
> From: francis schanberger <frangst at gmail.com>
> Sender: alt-photo-process-list-bounces at lists.altphotolist.org
> Date: Wed, 28 Sep 2011 19:23:23 
> To: <alt-photo-process-list at lists.altphotolist.org>
> Reply-To: The alternative photographic processes mailing list
>    <alt-photo-process-list at lists.altphotolist.org>
> Subject: [alt-photo] pinhole question
> 
> Dear Alt List,
> 
> I recently bought a Holga 120WPC, their wide pinhole camera, which is
> exhibiting some vignetting only on one side when I photograph with the
> camera set up for 6cm x 12 cm frames. Has anyone else experienced this with
> this camera? I took out a retaining washer which kept the pinhole in place
> and filed it a bit larger but I may have aggravated the effect. I won't know
> until I examine the negatives tomorrow (they are drying at school, about a
> mile away).
> 
> Has anyone here used any of the Holga pinhole cameras? Would the travel of
> the shutter cause the vignetting with such an extreme angle of view? I have
> seen images with this camera on flickr that exhibit no vignetting but this
> may be due to cropping.
> 
> -- 
> francis schanberger
> 
> www.francisschanberger.com
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