Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,837   Posts: 1,582,452   Online: 688
      
Results 1 to 7 of 7

Thread: collodion issue

  1. #1
    p1ot3's Avatar
    Join Date
    Sep 2006
    Shooter
    Medium Format
    Posts
    8

    collodion issue

    hi;
    i purchased B&S Old Workhorse Collodion kit; mixed it and my problem started...

    afer developing the plate layer of collodion is light brown. i tested with exposed and non-exposed (sensitized and developed) plates. each plate looks the same after developing. and fixer doesn't change anything. i use B&S developer also.

    no idea what can be wrong.

    p.

  2. #2
    Barry S's Avatar
    Join Date
    Jan 2007
    Location
    DC Metro
    Shooter
    Large Format
    Posts
    1,263
    Images
    31
    An unexposed tintype plate should be black and an ambrotype plate should be clear. Your plates sound like they're massively fogged or very overdeveloped. How long is your development?

  3. #3
    p1ot3's Avatar
    Join Date
    Sep 2006
    Shooter
    Medium Format
    Posts
    8
    15-20 seconds.

    p.

  4. #4
    p1ot3's Avatar
    Join Date
    Sep 2006
    Shooter
    Medium Format
    Posts
    8
    Quote Originally Posted by Barry S View Post
    ...Your plates sound like they're massively fogged or very overdeveloped...
    Thank you Barry. I'm working with this problem all day today...
    I will regenerate my silver bath (i excluded overdevelopment)

    P.

  5. #5
    Barry S's Avatar
    Join Date
    Jan 2007
    Location
    DC Metro
    Shooter
    Large Format
    Posts
    1,263
    Images
    31
    Your development sounds right on, so light or chemical fog of some sort.

  6. #6

    Join Date
    Apr 2011
    Shooter
    8x10 Format
    Posts
    10
    development is a variable. 15- 20 seconds is only correct if your exposure dictates that. there are sooooo many variables involved that we need more information to help you out. what are you darkroom conditions like? I can tell you that I shoot a ton of B&S old workhorse, and their chemistry is as reliable as it gets. you have a scan of your plate? what developer formula are you using?

  7. #7
    p1ot3's Avatar
    Join Date
    Sep 2006
    Shooter
    Medium Format
    Posts
    8
    It started working...
    I made so many tests last days. I used only distilled water (even for washing), regenerated silver bath, diluted developer from 1-1 to 1-5... and 2 days ago I started seeing improvements. Now I use tap water, dilute developer 1-3, silver bath is clear with about 3-4ph. Pictures are ok.
    Maybe this collodion needed a little aging, or something was in my tap water last days.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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