Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 73,076   Posts: 1,612,133   Online: 982
      
Page 1 of 2 12 LastLast
Results 1 to 10 of 12
  1. #1

    Join Date
    Jan 2010
    Shooter
    35mm
    Posts
    4

    Help Needed for TMax 400

    I made a stupid mistake and accidentally underexposed a roll of TMax 400 by 5 stops. Is there a way to save the film. I have not developed it yet . Any suggestions about how to develop it ?? Developing time etc??
    what kind of result should I expect? Thank you.

  2. #2

    Join Date
    Jan 2010
    Shooter
    35mm
    Posts
    4
    I forgot to mention that I have TMAX developer..but if you any other suggestion, please let me know.

  3. #3
    Rick A's Avatar
    Join Date
    Mar 2009
    Location
    north central Pa
    Shooter
    Multi Format
    Posts
    6,453
    Images
    34
    How can you underexpose by 5 stops--did you shoot everything at shutter speed 1000 or 2000 that should have been at 30 or 60, or maybe f/16 for everything that should have been f/2.8? Explain how you did this,please.

    Rick

    Edit: Did you use a hand held meter and set it at 12,800? None of my cameras will go past 6400asa, only my Sekonic L-398 is capable of that setting, and you can really tell if it is there just by a quick glance.
    Last edited by Rick A; 01-06-2010 at 07:24 AM. Click to view previous post history. Reason: added question

  4. #4

    Join Date
    Jan 2005
    Location
    Live Free or Die
    Shooter
    Multi Format
    Posts
    4,643
    Images
    91
    Some developers are better than others for pushing, but 5 stops, as noted by Rick is pretty extreme. So, you may as well use it as a learning experience to see how far you can take the materials and chemistry you are already working with.
    Kodak's data sheet has suggested times for various speeds. A snip test will be your best route. Cut off a portion of the film, extrapolate heavily from Kodak's fastest recommendation and see what happens. Adjust from that time as necessary and process the rest of the roll.

    As to what to expect, a lot of grain, and very contrasty images.

  5. #5
    BetterSense's Avatar
    Join Date
    Aug 2008
    Location
    North Carolina
    Shooter
    35mm
    Posts
    2,933
    I think I would just put it in a dilute developer overnight.
    f/22 and be there.

  6. #6
    mjs
    mjs is offline

    Join Date
    Mar 2005
    Location
    Elkhart, Indiana (USA)
    Shooter
    Multi Format
    Posts
    1,107
    Images
    2
    What BetterSense said. Try D-76 1:3 and leave it for 8-10 hours or so, no movement, no agitation. Just let it sit. Stop, fix and wash as normal.

  7. #7
    RalphLambrecht's Avatar
    Join Date
    Sep 2003
    Location
    Central florida,USA
    Shooter
    Multi Format
    Posts
    6,907
    Images
    1
    Quote Originally Posted by okanumit View Post
    I made a stupid mistake and accidentally underexposed a roll of TMax 400 by 5 stops. Is there a way to save the film. I have not developed it yet . Any suggestions about how to develop it ?? Developing time etc??
    what kind of result should I expect? Thank you.
    Nice for a chemical experiment or artistic exploration, but give up hope to make quality images from it. It's a goner. A 5-stop overexposure, on the other hand, and you could still make high-quality images, but B&W negative film is very sensitive to underexposure.
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  8. #8

    Join Date
    Jan 2010
    Shooter
    35mm
    Posts
    4
    how did i make this mistake? i just did not meter beforehand. my camera is a diana + . shutter speed is fixed ....1/60 ..the camera was on cloudy mode which is equivalent to f/11. after i shot a roll of tmax 400 indoors ,in my baby's room with ambient light, i measured the light with my lightmeter and noticed that my exposure was under 5 stops....

  9. #9
    jp498's Avatar
    Join Date
    Oct 2009
    Location
    Owls Head ME
    Shooter
    Multi Format
    Posts
    1,467
    Images
    74
    For something with a fixed shutter speed, you might want a more forgiving film in the future. Tmax was initially shunned, and not used in schools, because people felt traditional film like tri-x was more forgiving of exposure.

    I'd probably push process it in tmax developer, the print the weak negatives at a higher contrast grade if needed.

  10. #10
    RalphLambrecht's Avatar
    Join Date
    Sep 2003
    Location
    Central florida,USA
    Shooter
    Multi Format
    Posts
    6,907
    Images
    1
    Quote Originally Posted by jp498 View Post
    For something with a fixed shutter speed, you might want a more forgiving film in the future. Tmax was initially shunned, and not used in schools, because people felt traditional film like tri-x was more forgiving of exposure.

    I'd probably push process it in tmax developer, the print the weak negatives at a higher contrast grade if needed.
    There is no latitude towards underexposure, only acceptable loss of shadow detail.
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

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