Hi all,
I experienced some strangeness in a C-41 development run, and hope that someone might be able to help me nail down the error in my process.
I shot four sheets of Portra 400 in my camera, using both sides of two separate film holders.
I loaded the sheets into a Jobo 2520 drum on 2509 reels, and processed the run in a leveled Jobo CPE-2 processor using an Arista C-41 liquid kit. The chemistry was fresh, and processed at the appropriate temperature.
Of the four sheets in the drum, two exhibited the strange patterns shown below. The other two processed perfectly.
The two that processed well were on the same side of the 2509 reel, and the two that had problems were on the other side. The two that processed perfectly were from a single film holder, and the two that had problems were from a separate film holder.
Because the two problematic sheets were both from a single holder, and both processed on the same side of the Jobo drum, I think that the problem is either with the holder or drum.
The problems on the images don't look that the "normal" light leaks I'm used to with bad film holders.
I would think that the drum's rotation would negate any "good side" or "bad side" of the tank/reels.
It's possible that I somehow misloaded the two "bad" sheets into the drum.
Thank in advance for any help troubleshooting this issue.
Good sheets:
Bad sheets:
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