Streaking: Fuji Acros 120 w DDX

[jan normandale]

can someone tell me what they think is happening here. The top edge of the film has 3 slightly parallel lines with what looks like stains / streaks running thru the top edge and finally some of the frames have a vertical bar

I've developed Acros for a long time in Paterson tanks.. this is new. I've shot lots of BW including Acros in this specific camera and this has not show up until this latest batch of film I developed 2 days ago.

FWIW: Fuji Acros 120 w DDX 1:4 at 20c for 10 minutes regular agitation in Paterson tank

 

[jan normandale]

bump.. at 3.00 am.. I should do this again tomorrow at 6.00pm ...

 

[Trius]

When did you make these exposures? Any chance another, different film was put through around the same time or shortly after? I'm still thinking shutter, but it is strange for sure.

 

[jan normandale]

Dr Trius thanks for chiming in. I developed four rolls of Acros at the same time. They were all 120 and some frames, but not all, on the other three also show these marks.

 

[Trius]

Can you expose a different emulsion in that camera, develop in DDX and see if the issue presents again? Trying to rule out a bad batch of film, if possible.

 

[jan normandale]

Can you expose a different emulsion in that camera, develop in DDX and see if the issue presents again? Trying to rule out a bad batch of film, if possible.

Mr T... this is a roll from a bulk order of 100 rolls thru B&H so I'm prepared to do that but the thing is these streaks and stripes don't always appear on each frame of the roll of film. I'm wondering if it's an agitation issue or there's some issue related to the Paterson reels... any thoughts there?