Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,472   Posts: 1,570,965   Online: 809
      
Results 1 to 4 of 4
  1. #1
    Nicholas Lindan's Avatar
    Join Date
    Sep 2006
    Location
    Cleveland, Ohio USA
    Shooter
    Multi Format
    Posts
    2,378
    Images
    4

    Reciprocity and Intermittency failure in enlarging paper.

    There is a new application note on reciprocity and intermittency effects in photographic paper on the Darkroom Automation web site support page.

    The results of tests with Ilford MGIV show no reciprocity or intermittency failure.
    DARKROOM AUTOMATION
    f-Stop Timers - Enlarging Meters
    http://www.darkroomautomation.com/da-main.htm

  2. #2
    Mick Fagan's Avatar
    Join Date
    Sep 2005
    Location
    Melbourne Australia
    Shooter
    Multi Format
    Posts
    2,845
    Images
    29
    Nicholas, interesting reading, one question though. How is the timer adjusted so you can allow a 50-millisecond warm-up time, for the enlarging globe?

    The possibility of allowing extra time for the globe to warm-up, has never occurred to me before. I just took it for granted, one had to allow a fraction of a stop using guestimation and experience.

    Mick.

  3. #3
    Nicholas Lindan's Avatar
    Join Date
    Sep 2006
    Location
    Cleveland, Ohio USA
    Shooter
    Multi Format
    Posts
    2,378
    Images
    4
    Quote Originally Posted by Mick Fagan View Post
    How is the timer adjusted so you can allow a 50-millisecond warm-up time for the enlarging globe?
    http://www.darkroomautomation.com/su...2LampDelay.pdf
    DARKROOM AUTOMATION
    f-Stop Timers - Enlarging Meters
    http://www.darkroomautomation.com/da-main.htm

  4. #4
    Mick Fagan's Avatar
    Join Date
    Sep 2005
    Location
    Melbourne Australia
    Shooter
    Multi Format
    Posts
    2,845
    Images
    29
    Very interesting, thank you.

    Mick.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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