Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
> Mottling on 120 Delta 400 |
*** Click here for the FADU 2015/2014 Yearbooks *** |
|
Thread Tools | Search this Thread | Display Modes |
#11
|
|||
|
|||
Hi, Mitch. Thank you for pointing me to your interesting article. In the distant past I had a problem with the wetting agent, I was using a way too concentrate solution which left a nasty sticky residue really difficult to remove. Part of the problem was the tap water, using distillate/demineralized water for the wetting agent solution tamed the problem and reducing drastically the quantity of wetting agent stock did the rest, leaving a perfectly shining film. Apparently only exteriorly if the issue is affecting the emulsion below the surface. I'll take your advice and try to do the WA bath in a separate container.
M. |
#12
|
|||
|
|||
I use Ilford wetting agent and keep it in a bottle which I then decant into a plastic sandwich box and swish the film which I have removed that that stage from the reel in there. I run my middle two fingers down the film twice once I have removed it from the WA and then shake the film vigorously before hanging it up. So far(several years) I have had no problems
It might be relevant to say that the film is hung in a drying cabinet and fan driven air is blown over it. However even without fan driven air I think that the WA does come off the film's surface OK so that if the fan were ever to break down the film would still dry cleanly but of course take longer to dry Mike |
#13
|
|||
|
|||
Thank you for the tips, Mike. I'll try doing the WA bath out of the tank and see. I also use my fingers to remove di excess of liquid after having removed the film from the reel. Then as you do I hang it in a drying cabinet.
Mine is a DIY one with no fan, although I originally planned to put in one at a later time. The film is drying clean, on the surface at least. M. |
#14
|
||||
|
||||
I had a problem like that a couple of years ago and traced it to partially exhausted fixer. Might be worth a check.
Sent from my iPhone using Tapatalk |
#15
|
|||
|
|||
marty it is defiantly the way it is stored and it only happens with 120 film and usually near the end of the sell by date or older ,if the film has been through a summers and a winter,with all the temperature changes and the film has some moisture in it and this with the backing paper causes this to happen .I now will only buy ten or twenty rolls of 120 at a time ,unless I am going to shoot a lot in a short time .but 35mm don't seem to have this problem and I don't mind buying a load of that film . I don't have the use of a fridge and keep my film in a box under my enlarger table on the floor ,its the coldest place in my darkroom . I had a similar problem once, i loaded up some 5x4 film in a slightly damp developing tank so I could develop it the next day ,after I had developed the film and hung it up to dry I notest the same blotchy pattern on the negs ,so I would guess that the worm night and damp developing tank produced moisture that stuck to the film ,the film was fomapan sheet film.
|
#16
|
|||
|
|||
Quote:
Can you see the defects on the negative? Maybe in strong reflected light? |
#17
|
|||
|
|||
Quote:
So the storage conditions of the film rise to the top of the list of suspects. Perhaps it is my rigorous photolab apprenticeship, but I would no more use improperly-stored film than eat a sandwich that had been out of the fridge for a few days. |
#18
|
|||
|
|||
Quote:
It so happens, that I have been printing up an old negative this week and have exactly the same marks in the sky area that is being talked about. It might explain why I never printed that neg / film up at the time. Saying that I am going to check the rest of the film, especially any negs that have sky areas on, to see if it's apparent on them as well, which I suspect it will. But the question I have, before I try it, is if I rewash the separate lengths of negatives that have this mottling in the sky area, will it disappear after a further wash or is it there permanently now? Terry S |
#19
|
|||
|
|||
I had mottling very similar to that of the op,with a batch of out of date HP5+ which I bought from an aquaintance. I put it down to bad storage conditions and vowed never again to buy out of date films.
Tony |
#20
|
|||
|
|||
Quote:
M. |
Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Delta 400 exposed at 100 iso | vincent | Monochrome Film | 20 | 20th October 2012 04:28 PM |
Delta 400 @ 200 iso | vincent | Monochrome Film | 19 | 12th October 2011 01:00 PM |
HP5+ or Delta 100 | Nabhar | Monochrome Film | 18 | 7th November 2010 02:07 PM |
Ilford delta 400 | vincent | Monochrome Film | 10 | 23rd August 2010 07:20 PM |
Delta 100 4x5 | Jon Butler | Monochrome Film | 9 | 21st February 2010 09:44 PM |