Archived posting to the Leica Users Group, 1999/10/15

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Subject: Re: [Leica] iiif + elmar 50, 3.5 + delta 400 = !
From: Guy Bennett <guybnt@idt.net>
Date: Fri, 15 Oct 1999 08:52:58 -0800

>i did experience one problem: on some seven or eight shots,
>there are what appear to be streaks running horizontally across the frame,
>as if the film were being wound over something, or as if a roller were
>being rolled over the film. in those shots, there are a series of visible
>horizontal lines that seem to run in groups, like a musical staff, across
>the picture. they are visible, both on the proof and in the negs,but arenot
>so pronounced as to obscure the image completely. obviously, however, they
>are unacceptable and i'd like to get rid of them.
>
>when i looked over the notes i took when making those pictures, i noticed
>that all of the shots in question were taken out of doors at either 1/500
>or 1/1000. none of the other images, shot at slower shutter speeds, were
>affected. does any one have any idea what this might be? could it be
>possible that the shutter curtain is making contact with the film as it
>opens and shuts? i can't imagine what else it might be since frames right
>next to the streaked ones are totally clean, no lines whatsoever. i suppose
>that if had something to do with the film being advanced, or what-have-you,
>those lines would appear over more of the shots, or, if not, at least not
>only over those shot at 1/500 and 1/1000.
>
>guy