Results 1 to 4 of 4

Thread: Need densitometer reading

  1. #1

    Join Date
    Aug 2015
    Location
    St. Louis area
    Posts
    9

    Need densitometer reading

    Anyone know of a lab I can send my 4x5 negative to so I can get a reading? Looking to find base plus fog negative value 0. Interestingly, I nave vision problems where I have trouble differentiating those very dark tones, so this would be a way for me to accurately establish my exposure / processing procedures.

    Thanks.

  2. #2
    Photographer
    Join Date
    Feb 2001
    Location
    Pine Junction, CO
    Posts
    867

    Re: Need densitometer reading

    View camera store—Fred Newman
    Keith Pitman

  3. #3
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,681

    Re: Need densitometer reading

    Do you have a spot meter. Place the negative in question over your spotmeter's lens. Every 1/3 of a stop the spotmeter reading drops represents 0.1 log d. Or every stop represents 0.3 log d.

    I think that in the "Fred Picker" years, finding the 1/3 of a stop with the older Weston meter was not so reliable. But with the advent of digital spot meters, the results should be identical to a densitometer reading. In fact my spot meter cost 3 times what I paid for my densitometer and the specs are better than my densitometer (if you believe the literature that came with the meter).

  4. #4

    Join Date
    Jan 2013
    Location
    Madisonville, LA
    Posts
    2,202

    Re: Need densitometer reading

    If you pm me, and include an SASE, I'll give you my address and gladly read and return them to you.

    L

Similar Threads

  1. Replies: 1
    Last Post: 25-Sep-2016, 17:33
  2. Test Report: Automated Reading Densitometer X-Rite 890
    By ic-racer in forum Darkroom: Film, Processing & Printing
    Replies: 15
    Last Post: 12-Nov-2012, 07:22
  3. Pyrocat-HD & densitometer reading??
    By Bob Farr in forum Darkroom: Film, Processing & Printing
    Replies: 4
    Last Post: 21-Sep-2011, 13:32
  4. Densitometer reading upside-down?
    By blevblev in forum Darkroom: Equipment
    Replies: 18
    Last Post: 8-Feb-2008, 18:33
  5. Densitometer: spot-reading vs strip reading?
    By cyrus in forum Darkroom: Equipment
    Replies: 11
    Last Post: 31-Jul-2006, 19:37

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •