Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,964   Posts: 1,523,314   Online: 1212
      
Results 1 to 5 of 5
  1. #1

    Join Date
    Jan 2005
    Location
    Austin, TX
    Shooter
    4x5 Format
    Posts
    46

    Characteristic curve for TMX in XTOL 1:1?

    Does anyone have density data for this combination (sheet film)? I can't find it in Kodak's data sheets. Paul Butzi has some partial data for TMX rated at EI 64, but I remember that John Sexton rates TMX at EI 80 in TMax developer. Since XTOL increases shadow density, I'd like to see whether this combination yields a true 100 speed film (FB+F). I plan to do my own film testing, but I'd like to minimize the required number of exposure/development iterations.
    Melchi M. Michel

  2. #2
    L Gebhardt's Avatar
    Join Date
    Jun 2003
    Location
    NH - Live Free or Die
    Shooter
    Large Format
    Posts
    1,674
    Blog Entries
    1
    Images
    18
    I have a BTZS test I did on TMax 100 with XTOL 1+1 in a Jobo. A speed of 80 is what I got with this film for a normal exposure. I can send you the file if you use Plotter.

  3. #3

    Join Date
    Jan 2005
    Location
    Austin, TX
    Shooter
    4x5 Format
    Posts
    46
    Thanks Larry. I don't use plotter (I do my analyses in Matlab), but I would greatly appreciate either raw exposure/density data or a plot of the curve. Did you find the Kodak recommended time (9min at 70 degrees F) to be about right for normal exposure, or did you have to reduce development?
    Melchi M. Michel

  4. #4
    L Gebhardt's Avatar
    Join Date
    Jun 2003
    Location
    NH - Live Free or Die
    Shooter
    Large Format
    Posts
    1,674
    Blog Entries
    1
    Images
    18
    Here is a PDF export from Plotter. I think it should have everything you need. Note that my temperature is 24C/75F vs Kodak's temp of 70F. My dev time for N will be 4.5 minutes.
    Attached Files

  5. #5

    Join Date
    Jan 2005
    Location
    Austin, TX
    Shooter
    4x5 Format
    Posts
    46

    Thanks

    Thanks Larry. This was exactly what I needed.
    Melchi M. Michel



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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