Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,514   Posts: 1,543,662   Online: 951
      
Results 1 to 7 of 7
  1. #1
    Eric Rose's Avatar
    Join Date
    Nov 2002
    Location
    Calgary AB, Canada
    Shooter
    4x5 Format
    Posts
    4,256
    Images
    73
    I used HC110 at dilution B and developed for 4.5 minutes. Seemed a bit to much development though. I would imagine I should use a more dilute mix so I don't get into to short of develop times. The negs I developed in Pyrocat-HD came out perfect at 13 minutes.

    So sticking to HC110 what dilution and time should I use?
    www.ericrose.com
    yourbaddog.com

    "civility is not a sign of weakness" JFK

    "The Dude abides" - the Dude

  2. #2
    lee
    lee is offline
    lee's Avatar
    Join Date
    Nov 2002
    Location
    Fort Worth TX
    Shooter
    8x10 Format
    Posts
    2,913
    Images
    8
    is this predicated on 68 degrees f? How are you getting to dil b? are you mixing as Kodak says or one ounce to 31 ounces? Which film? I forget. I use the one ounce to 31 ounces for my convience.

    lee\c

  3. #3
    lee
    lee is offline
    lee's Avatar
    Join Date
    Nov 2002
    Location
    Fort Worth TX
    Shooter
    8x10 Format
    Posts
    2,913
    Images
    8
    I usually develop in the 6 minute range for normal. For cold light. Have you printed the film yet from HC110? Do that before passing judgment.

    lee\c

    I know Hp5+ and at 200 That should do it.

    l\c

  4. #4

    Join Date
    Sep 2002
    Location
    Boston, MA
    Shooter
    Multi Format
    Posts
    970
    Images
    3
    Check out this site for HC110 information.

    http://www.covingtoninnovations.com/hc110/

    You might want to look into some of the other dilutions. I am trying Dilution H (unofficial-not described in Kodak Pubs) with is 1:63 (about 1/2 strength of Dil B)
    The development times for Dilution H are about twice the Dilution B times.

    I use Tmax and it gives me longer times so I can do (N-1 N-2) without going with too short a development time.

    The Massive Development chart says 5 mins for HP5 @400 with HC110 B.

    http://www.digitaltruth.com/devchart.html

    I hope this helps, it helped me quite a bit.

    Regards,
    John

  5. #5
    Eric Rose's Avatar
    Join Date
    Nov 2002
    Location
    Calgary AB, Canada
    Shooter
    4x5 Format
    Posts
    4,256
    Images
    73
    The negs looked over developed at 4.5 minutes to me. This is using dilution B. I will continue my quest. The temp was 70F.
    www.ericrose.com
    yourbaddog.com

    "civility is not a sign of weakness" JFK

    "The Dude abides" - the Dude

  6. #6
    ann
    ann is offline

    Join Date
    Sep 2002
    Shooter
    35mm
    Posts
    2,878
    Images
    26
    We have been using that dilution rate for years in our classroom labs. Development time 5 minutes at 68. Film rated at 200. My own time is 5 1/2 minutes for one camera body, 5 for the other. EI 160 and 250 for corresponding bodies.
    http://www.aclancyphotography.com

  7. #7
    KenM's Avatar
    Join Date
    Apr 2003
    Location
    Calgary, Alberta
    Shooter
    4x5 Format
    Posts
    800
    Barnbaum suggests 6.5 Minutes for N development in 1+7.5 stock to water. N-1 is 4.5 minutes, N+1 is 10.5 minutes.

    Calgary water is more alkaline than his, so I've adjusted my times downwards about 10%. Seems to work ok for me.
    Cheers!

    -klm.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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