Results 1 to 7 of 7

Thread: reducing density on negative

  1. #1

    Join Date
    Mar 1999
    Posts
    769

    reducing density on negative

    Hi all I have a negative which is proving remarkably difficult to print. I guess I shou ld have given it N-2 processing or something but I'm guessing I goofed on the ex posure. The negative haunts me because it has all the information I need. The tr ouble is it has a really wide contrast range and even the softest contrast filte r (I'm using Ilford multigrade) doesn't give me the whole range of tones without extensive dodging and burning. Even the basic exposure time is damned long. I've heard that it is possible to use Farmer's reducer to bleach a dense negativ e down. However, I have also heard that Farmer's reducer tends to increase the c ontrast by working at shadow values more. Is there any other reducer which would either reduce the highlights more or reduce density more or less evenly? Thanks DJ

  2. #2

    Join Date
    Nov 1998
    Posts
    93

    reducing density on negative

    I would try an unsharp contrast mask.

  3. #3

    Join Date
    Sep 1998
    Location
    Oregon now (formerly Austria)
    Posts
    3,408

    reducing density on negative

    Before you resort to reducer, make sure you use all the other alternatives first . It's really easy to ruin a negative with reducers. First, try Selectol Soft developer diluted more than usual. Water baths between short dips in the developer can also reduce contrast a bit. Try Ilford Gallerie grade 1, it's pretty soft. If none of this works, the unsharp contrast mask will almost certainly do the job. Somewhere on this site is a description of how to make them. Good luck. ;^D>

  4. #4

    reducing density on negative

    Although it won't help with the long exposure you might want to "flash" the paper before you expose the neg. You'll need a timer that will allow very brief exposures a tenth of a second may do it. This will reduce the overall contrast of the print.

    Put the paper in the easel, expose it to white light for 1/10 of a second (play with this time, since it's a guess on my part) and then try a test print.

  5. #5

    Join Date
    May 1998
    Posts
    218

    reducing density on negative

    Farmer's reducer used in the conventional way (one bath of ferricyanide and hypo) does increase contrast. But used as a two-bath solution (very weak ferri, then hypo) it can reduce contrast. Another possibility is to bleach the negative in an acid solution of potassium bichromate, and re-develop.

    I would certainly test these on scrap negatives first.

  6. #6

    reducing density on negative

    Alan's suggestion is something you might try but we can't see your neg so I'd try some of the other suggestions first. Unsharp masking is the first alternative I would try. I have negatives that will only print with a mask. As for the length of exposure, what light source are you using. It sounds like some of my negs of Bodie where I forgot how dense IR can get if you don't watch it. If you can see all the detail in the neg it should print ok. If you need some info on density or unsharp masks let me know at my E-dress and I will send you some very simple instructions for making masks.

  7. #7

    reducing density on negative

    Life is not simple. Everyone has given you good advice. I've never tried reducer and would be hesitant to use it on a neg I wanted. I would pre flash, but you will need a very low voltage bulb or what I have done is use a 110V-12V mini plug in transformer a light switch and a trailer side light (auto store) in amber. I mounted it on the ceiling after drilling a 1/4" hole in the amber cover. I then ran test strips to see how much exposure I needed to just fog the paper and reduced the exposure below this level. the wires to the bulb are 6V and the light switch controls the exposure which in my case is a reasonably controllable 6 Sec.,not a brief flash! Masking will also work but that's another whole ball of wax.

Similar Threads

  1. Polarizer - Effect on Negative Density
    By Brian Ellis in forum Lenses & Lens Accessories
    Replies: 5
    Last Post: 20-Oct-2005, 09:36
  2. Density Opinion
    By Richard Ryerson in forum Style & Technique
    Replies: 26
    Last Post: 7-Jun-2005, 02:26
  3. PT/PD Negative Density Range.
    By William Marderness in forum Darkroom: Film, Processing & Printing
    Replies: 6
    Last Post: 19-Feb-2002, 13:52
  4. PMK TIMES vs DENSITY
    By Alan Barton in forum Darkroom: Film, Processing & Printing
    Replies: 3
    Last Post: 22-May-2000, 14:46

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •