Banding on a Tmax

[Paulus]

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A few day ago I devolloped 4 film in Tmax develloper. three Tmax 100 and a Rollei film. 

 

The rollei film came out fine, the Tmax film showed a form of stripes , which looked like the banding of a digital sensor. 

 

 

Strange feeling, if you are photographing non digitally for the occasion. 

 

 

Any idea what this might cause? 

 

Photo's of the baby are with banding , the rollei photo is without stripes potrait young woman. The negative shows the same stripes as the print so the problem lies there.

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[Paulus]

And here:

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[Paulus]

Rollei film:

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[fotomas]

Hard to tell from afar. The first picture looks a bit underexposed. This is indeed not the reason for the banding, but therefor you have to increase the contrast, so that it becomes more visible.
Since the banding is not exactly horizontal it could be from the wet film being pull't through, for example, two fingers to get the water of. Some films are sensitive to such treatment. In this case using a wetting agent instead, without touching the film, might solve the problem.

[Paulus]

Hard to tell from afar. The first picture looks a bit underexposed. This is indeed not the reason for the banding, but therefor you have to increase the contrast, so that it becomes more visible.

Since the banding is not exactly horizontal it could be from the wet film being pull't through, for example, two fingers to get the water of. Some films are sensitive to such treatment. In this case using a wetting agent instead, without touching the film, might solve the problem.

 

Wetting agent was used. The underexposed film was printed on 3 ( Ilford filter ) just like the last picture without banding. The 4 films were developed at the same time. In the same tank. The developing temperature was 24 degrees celsius and the developement time

was 6 minutes. Also the bandig appeared on three rolls of Tmax. If this had something to do with Wetting agent or fingers, the coincident would be very high. I develope film is this way for 30 years now and this is the first time I see this. 

 

The rollei film was recent ( bought this year) the Tmax rolls were older ( maybe 4-5 years old ) maybe I have to search there. I was think it was an emulsion problem. The MP I use works flawlessly.