Archived posting to the Leica Users Group, 2003/11/26

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Subject: [Leica] Frame #31 Uneven - Update
From: Peter Klein <pklein@2alpha.net>
Date: Wed, 26 Nov 2003 15:47:51 -0800 (PST)

Update:  The problem shows on the negatives.  When I looked closely at the
negs, I realized that it had to be the processing. Reason: The line
through the middle of the picture continues to the edge of the film. In
other words, the parts of the film that were not exposed to light are
also affected, not just the image.

On the two rolls of Reala 100, the film's mask is kind of greenish orange
until the dividing line in frame 31. Then the green tint disappears for
the rest of the roll, and the density of the unexposed film is a bit less.
On the roll of Supra 400, there is no change of base color, but the "film
base plus fog" becomes less dense.  

The machine is a Fuji Frontier 370, and eveidently they did have some sort
of stalling issue with it sometime after my rolls were developed. They
think that perhaps it only affected 36-exposure rolls, and that they

So, it looks like I don't have to send my Leica in for repair after 
all.  A big thank-you to everyone who responded.

Happy Thanksgiving, all!

- --Peter

 --- I wrote: ---

> http://www2.2alpha.com/~pklein/tofino/1-31ShutterProb.jpg
> http://www2.2alpha.com/~pklein/tofino/2-31ShutterProb.jpg
> http://www2.2alpha.com/~pklein/tofino/3-31ShutterProb.jpg

> 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. 


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