Recent content by owk.edo

Thank you for the insight, it makes sense! I'll be running some tests in daylight tomorrow and hopefully have good news.

Yes, pretty much. Maybe in different amounts over the years but not having any issues with negatives or densitometry so far made me feel confident with the way things were going or at least I haven't really monitored these aspects closely. I understand now this might have been an oversight. The...

I'd like to point out that this setting has been unchanged since the machine was installed 4 years ago and the issue at hand has only started happening recently

The lift cycle takes 27s to complete, including 8s of drip time. There is no stop bath, the film goes from the developer straight into the bleach

Hi John interesting, they were set that way by the engineer and slightly adjusted by me once the densitometry line was up. The solution does rise about an inch with the burst but I did notice quite a lot of bubbles/foam with somewhat intensive throughput of rolls. Do you think excessive foaming...

Hi John, thank you for the message. Cycle is 3s ON, 7s OFF. There is also a 1s pre-agitation setting that happens just before the rack lands. The machine does not burst while transporting but I guess the pre-agitation happens at the very last moment of the lift movement if that's what you mean. E

Thank you for looking into this. Apologies, I think that might be due to the top strip being curled and showing less of the effect in this particular picture I took. If I lay it flat next to the other one they appear to be affected in the same way. As far as I can tell there is no pattern...

I see your point, and I'd definitely prefer to do some more investigation before replacing the chemistry tbh. Here is a link to the inverted scans of the full length of the original example I sent (2 rolls of 120 Portra 400) and pictures against a backlight of the same two negatives, taken...

Just ran the two tests, I let both strips sit in the tanks for a while and then ran the machine to make sure bleaching and fixing processes achieved completion. Unfortunately the marks are still there. I am now wondering if there is anything else I could do before dumping the dev. Especially in...

On visual inspection the pump runs fine and the circulation is visibile inside the tank

Yes of course, if it comes to that I'll make sure everything is replaced and cleaned before filling up again with fresh solution

I see your point and from the information I've given it makes sense to come to that conclusion but I'd like to point out that: 1. wouldn't that amount of cross contamination be well visible in my sensitometry? My control strips are within range and - apart from the flowmarks - the negatives are...

Hello Koraks, thank you very much for the reply. I did stumble upon the thread you linked when I was googling for issues like mine and, although it offers some useful insights on the drying process, I believe my issue is something entirely different. The drying spots occurred because I dried...

Hello! Posting here for the first time and in search of some help on an issue I've been having in my C41 process. I've been running a Tecnloab dip and dunk for 4 years now, it's been serviced by a professional when first set up at my lab and I've hardly made any changes to the setup, times or...