Re: [Leica] another test

[RUBEN BLĘDEL <ruben@rhodos.dk>]

here goes again - is the leica users mailing list down or what - I?m not 
receiving my own test mails - would be great if someone could mailme of 
list to confirm if this works or not

regards Ruben
ruben@rhodos.dk

Peter Klein wrote:

>Folks: Simon's drying marks on his negs reminded me of a mysterious
>problem I had recently.  It happened on three successive rolls of color
>neg film (1 of Supra 400, two of Reala 100), all shot in the same M6TTL,
>and processed together at the same lab.
>
>On each roll, on frame #31 and *only* frame #31, the right half
>(approximately) of each print was significantly darker than the left half,
>with a distinct boundary. The brighter half (left) looked correctly
>exposed, the darker half (right) looked underexposed. The boundary between
>the bright and dark areas was a vertical line, not exactly straight, but
>nearly so.  All three defective frames were probably *not* taken at the
>same shutter speed, which could have been anywhere between 1/60 and 1/500.  
>The unevenness appears on the negatives, too. 
>
>I suspected a shutter problem.  But when I talked to Sherry about it, she
>said that she didn't see how such a thing could be related to a frame
>number.  If all or most pictures taken at a particular shutter speed were
>uneven, that would indicate a shutter problem.
>
>Since then I've shot several rolls, and the problem has not recurred.
>I've used both the lab where the three problem rolls were developed, and
>another.  No more uneven frames.
>
>I'm beginning to wonder if the processing is at fault. The only three
>things in common are the camera, the lab, and the time of processing.
>
>I can post a couple of jpegs this evening (they're on my PC at home).
>
>Does anyone have any idea what could have caused this?
>
>--Peter
>
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>
>  
>

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