Medium Format Forum

Register a free account now!

If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.

Pale edges on negatives

RobC

New Member
This seems to be happening with pretty much every roll of black and white that I home develop. A12 backs have had their light seals replaced and I use more than sufficient developer. Any ideas would be greatly appreciated.
 

Attachments

  • Edge-1.jpg
    Edge-1.jpg
    179.2 KB · Views: 6

Late Developer

New Member
Hi Rob,
Firstly, that's a nice photo and it's a pity the edges are slightly "pale". I doubt I can be much use on this as I had an A12 back which did this and, like you, I had the light seals replaced with new - but to no avail. Eventually, I traded the back for a newer version (the one with the dark-slide keeper on the back) and that worked fine. If you use a hybrid workflow, you might experiment with using a vignette to darken the edges. Sorry if it's not much help but it's all I can think of.
Best wishes, Paul.
 

RobC

New Member
Hi Paul,
Thank you so much for taking the trouble in responding and for your kind words regarding my photo. As you posted this I was actually online looking for a newer back to do a test. Can't find one anywhere. I have 3 backs and all exhibit the same issue. Did your pale margins occur on all sides as mine does?
 

Late Developer

New Member
Please, Log in or Register to view quote content!
Hi Rob - the pale edges on my shots were, from memory, in the same position. I had about 6 backs in total but only one exhibited this problem. At the time, I was using a local lab to develop the film (mostly B&W but some colour) and the pale edges were relatively consistent but more noticeable on darker / lower light photos. I'm not sure where you're based but, if you are in the UK, there's a very good dealer
Please, Log in or Register to view URLs content!
- based in London on Museum Street just down from the British Museum - which I've used for the past 20 or so years. They often have A12 back for sale, separately from the bodies. They are not "cheap" but I have always been very happy with their products and services. It might be worth dropping them a line to see if they / their service engineer can suggest what might be causing the issue / possible solution. Just a thought but, if it's a common issue across all your backs, have you considered using duct tape to seal around the edges between one of the backs and the body? If you still get the pale edges, it might be the film stock you have or the processing / tank. All the best, Paul.
 

RobC

New Member
Hi Paul, thanks, again, for your input, and thank you for the link. What an excellent shop, never heard of that one and they have several. Was looking at using the black tape method over the next few days and working by process of elimination. I'll let you know how I get on. Many thanks, Rob
Here's one from the same day, same roll that was, fortunately, unnaffected.
 

Attachments

  • Robert-Canis.jpg
    Robert-Canis.jpg
    215 KB · Views: 2
Top