Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,840   Posts: 1,582,493   Online: 929
      
Page 1 of 4 1234 LastLast
Results 1 to 10 of 34
  1. #1
    Stoo Batchelor's Avatar
    Join Date
    Dec 2005
    Location
    Hertfordshire, England
    Shooter
    Medium Format
    Posts
    1,237
    Images
    42

    sodium sulfite as HCA

    Hi All

    Just a quicky, I read conflicting reports of how much sodium sulfite per litre to use for a hypo clearing agent. I use about 20g. I say 'about' because I use one level desert spoon as a measure, which when weighed is 20g give or take.

    Am I using too much or too little for a worthy hypo clear?

    Cheers

    Stoo
    _____________________________________________

  2. #2
    payral's Avatar
    Join Date
    Sep 2004
    Location
    France
    Shooter
    8x10 Format
    Posts
    367
    Images
    78
    I use 20g per litre too.

  3. #3
    Stoo Batchelor's Avatar
    Join Date
    Dec 2005
    Location
    Hertfordshire, England
    Shooter
    Medium Format
    Posts
    1,237
    Images
    42
    Quote Originally Posted by payral View Post
    I use 20g per litre too.
    Thats good to hear. I just thought, if I get many answers I will be just as confused!

    Thanks

    Stoo
    _____________________________________________

  4. #4
    JPD
    JPD is offline
    JPD's Avatar
    Join Date
    Mar 2007
    Location
    Sweden
    Shooter
    Medium Format
    Posts
    773
    Quote Originally Posted by Stoo Batchelor View Post
    Thats good to hear. I just thought, if I get many answers I will be just as confused!
    I use 19.93423g per 1.032 liter.

  5. #5
    Stoo Batchelor's Avatar
    Join Date
    Dec 2005
    Location
    Hertfordshire, England
    Shooter
    Medium Format
    Posts
    1,237
    Images
    42
    Quote Originally Posted by JPD View Post
    I use 19.93423g per 1.032 liter.
    Ha Bloody Ha
    _____________________________________________

  6. #6
    JPD
    JPD is offline
    JPD's Avatar
    Join Date
    Mar 2007
    Location
    Sweden
    Shooter
    Medium Format
    Posts
    773
    Sometimes I make a stock solution, 200g sodium sulfite and 2g sodium bisulfite (pH buffer?) per liter. The working solution is 1+9.

  7. #7
    Robert Hall's Avatar
    Join Date
    Aug 2004
    Location
    Lehi, Utah
    Shooter
    ULarge Format
    Posts
    2,040
    Images
    28
    I've use a tablespoon per liter for years. Works very well and save an enormous amount of money over the packaged chems.

    I buy sulfite by the 50 lb bag for about $1 a pound.
    Robert Hall
    www.RobertHall.com
    www.RobertHall.com/mobile
    Apug Portfolio
    Facebook Profile


    Technology is not a panacea. It alone will not move your art forward. Only through developing your own aesthetic - free from the tools that create it - can you find new dimension to your work.

  8. #8
    BetterSense's Avatar
    Join Date
    Aug 2008
    Location
    North Carolina
    Shooter
    35mm
    Posts
    2,882
    Where do you get it? I've looked at my local photo store and also at several pool stores (there are many in the Dallas area). I have yet to be able to find sodium sulfite anywhere except ordering from Freestyle.
    f/22 and be there.

  9. #9
    Photo Engineer's Avatar
    Join Date
    Apr 2005
    Location
    Rochester, NY
    Shooter
    Multi Format
    Posts
    23,530
    Images
    65
    The Photographers Formulary carries Sodium Sulfite as do several other companies.

    PE

  10. #10
    BetterSense's Avatar
    Join Date
    Aug 2008
    Location
    North Carolina
    Shooter
    35mm
    Posts
    2,882
    I know, but the previous poster claims to buy it in 50 pound bags for around $1 per pound. I was asking where he gets it, because buying it from Formulary is about $7 per pound, plus shipping.
    f/22 and be there.

Page 1 of 4 1234 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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