Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,270   Posts: 1,534,451   Online: 1002
      
Page 1 of 2 12 LastLast
Results 1 to 10 of 13
  1. #1
    naaldvoerder's Avatar
    Join Date
    Apr 2004
    Shooter
    35mm
    Posts
    584
    Images
    26
    Hi forum,

    Some printers cleam that FB paper should be developed for a full 5 minutes instead of the usual 2 minutes in f or instance ilford PQ. What is your experiance on that?

    JJ

  2. #2

    Join Date
    Dec 2002
    Shooter
    Large Format
    Posts
    6,242
    I don't share the experience of these printers that you mention.

  3. #3

    Join Date
    May 2003
    Location
    near Amsterdam, Holland
    Shooter
    Medium Format
    Posts
    747
    Images
    9
    I develop my FB papers for 2 minutes, and that seems to work fine.

  4. #4
    Les McLean's Avatar
    Join Date
    Oct 2002
    Location
    Northern England on the Scottish border
    Shooter
    Multi Format
    Posts
    1,610
    My normal time is 3 minutes but I do develop fibre papers for up to 10 minutes to achieve a particular effect. I also reduce development to as little as 45 seconds to reduce contrast and produce a warmer print colour. Clearly, both procedures are carried out in conjunction with adjusted exposure times.

  5. #5

    Join Date
    Jan 2004
    Location
    Manhattan Beach, CA
    Shooter
    8x10 Format
    Posts
    448
    Images
    19
    Quote Originally Posted by Les McLean
    My normal time is 3 minutes but I do develop fibre papers for up to 10 minutes to achieve a particular effect. I also reduce development to as little as 45 seconds to reduce contrast and produce a warmer print colour. Clearly, both procedures are carried out in conjunction with adjusted exposure times.
    This kind of latitude demonstrates what is POSSIBLE, not what is generally necessary. For years I developed for 3 minutes in Dektol, and I only use fiber paper. After some experimentation I determined that 2 minutes gave no less acceptable results. For the last 10 years I have used Dektol exclusively, and I soup for 2 minutes at 68 F. Now that I use variable contrast papers, I let the filters, not the development, determine contrast. Tray size, volume of developer and agitation have all been standardized, so the only surprises come from my errors in technique!

  6. #6

    Join Date
    Feb 2004
    Location
    israel
    Posts
    133
    papers have a differant behaviour in the stream of time in the different developers. my suggestion is:
    -work with the paper applaying more or less the manufacturers recomendation. this is good for biggining, and also it works the best most of the time for the general use. the consistancy is very important, and the creativity etc can be achived in filtration with the mc/mg papers.
    -take testes. look very carefully what happens to the paper while in the developer. first, base the testing on the normal developing time - as u would expose the paper for the 2 min developing. for example - the agfa mcc papers will give u in bromophen or pq a very low contrast image in about 30sec, and from this point it will continue to build up contrast and density. at about 1.30min the high lights also starting to take density a bit without the loss of over contrast. ilford mg5 for exaple will start showing image at about 45sec while building the density and contrast fast at the blacks and after the 1.30min the high keys will take some density as well. at the mid-time of the development the agfas has more uniform development at most tone values, while the ilford builds first the density of the lower tones.

    whatching at this process u can start playing with exposure values and timings, and step by step understand both the nature of combination . paper/exposure/developer/time and of course - at the end evaluating the effect of the processes on the dry print - overall apearance, contrast, hue, the quality in which the fine details from the negative recorded etc.
    in tetsting it is important to be consistent with all the things and playing with one aspect of the process at each time.
    victor

  7. #7
    mobtown_4x5's Avatar
    Join Date
    Feb 2004
    Location
    Baltimore
    Shooter
    4x5 Format
    Posts
    244
    I have also standardized on 2 min.

    However, I have achieved some interesting effects with gross over/under exposure combined with gross under/over development respectively.

    I call the two techniques "bake -n- dip" and "flash-n-soak", :wink:

  8. #8

    Join Date
    May 2003
    Location
    near Amsterdam, Holland
    Shooter
    Medium Format
    Posts
    747
    Images
    9
    That is sort of what you do when lith printing, but you do it in 'normal' developer?

  9. #9
    skahde's Avatar
    Join Date
    Feb 2004
    Location
    Germany
    Shooter
    Multi Format
    Posts
    425
    Images
    4
    Test it: Take a strip of paper cover half of it. Expose it for maximum black, by turning the lights on for a few seconds.
    Cut that strip in smaller pieces including the exposed as well as the unexposed part. Develop the parts for 1, 2, 3, 4, 6 minutes. Examine when wet: Which one reaches maximum black? Examine when dry: Any fogging?

    Keep your time above the time for maximum black and well (!) below the value were fogging sets in. If fogging is a concern you better expose for three values, unexposed, light gray, maximum black.

    best

    Stefan

  10. #10
    naaldvoerder's Avatar
    Join Date
    Apr 2004
    Shooter
    35mm
    Posts
    584
    Images
    26
    Tim Rudman desribes a 'optimum development window", determent by test like you describe, Stefan. Do you think that fogging is likely to occur in f.e. 5 minutes.

Page 1 of 2 12 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin