Switch to English Language Passer en langue franšaise Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,549   Posts: 1,544,622   Online: 688
      
Page 1 of 2 12 LastLast
Results 1 to 10 of 16
  1. #1
    tony lockerbie's Avatar
    Join Date
    Feb 2006
    Location
    Bega N.S.W. Australia
    Shooter
    Multi Format
    Posts
    2,308
    Images
    373

    Efke PL25 Ortho, any clues on processing?

    Just bought a box of this film to try, but can't find any info anywhere on the processing of this stuff. There was a little leaflet enclosed with the film that recommended Rodinal at 1:10, yes 1:10, for four minutes. Seemed odd to me but I tried it, and wound up with almost black negs. I rated the film at 25 and 12, but they were all pretty much black. I'm interested in pictorial contrast for shady landscapes, may try a couple of portraits as well.
    Thanks for any help you can give.
    Cheers, Tony

  2. #2
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,270
    Images
    148
    Ortho films are often used to copy line drawings etc & a high contrast is often desired. Try processing like the normal EFKE PL25 and you should be fine. I used to use !+50 with Rodinal I think for 9 minutes at 20C.

    Ian

  3. #3

    Join Date
    Dec 2004
    Location
    Chicago, Western Suburbs
    Shooter
    4x5 Format
    Posts
    1,437
    Dear Tony,

    Ortho films can be developed in trays by inspection using a red safelight. I find that using a white tray makes it much easier.

    Neal Wydra

  4. #4
    JPD
    JPD is offline
    JPD's Avatar
    Join Date
    Mar 2007
    Location
    Sweden
    Shooter
    Medium Format
    Posts
    772
    POTA or Modified Windisch Film Developer from http://www.photoformulary.com (or mix yourself) should work well with this film, and give normal contrast.

  5. #5
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,270
    Images
    148
    The EFKE Ortho PL25 isn't a microfilm and isn't inherently contrasty so developers like POTA or modified Windisch aren't really appropriate at all. Just use a standard developer like Rodinal @ 1+50 or D76/ID-11.

    Ian

  6. #6
    JPD
    JPD is offline
    JPD's Avatar
    Join Date
    Mar 2007
    Location
    Sweden
    Shooter
    Medium Format
    Posts
    772
    Here's the information Maco provides (Maco ORT25 is the same film):

    suited for general graphic purposes and special effects
    photographic halftone application by use of special developers

    ...

    LABOR PARTNER LP-docufine LC: 5 Minutes = for pictorial (halftone) photography, ISO
    setting approx. ISO 25/15░ (▀ 0,55)

    For pictorial photography (architecture, landscape etc.) the LABOR PARTNER LP-Docufine LC will deliver unsurpassed results. It has been introduced to the market at the PHOTOKINA show in September 1998.

    http://www.mahn.net/TAOrte.htm

  7. #7
    tony lockerbie's Avatar
    Join Date
    Feb 2006
    Location
    Bega N.S.W. Australia
    Shooter
    Multi Format
    Posts
    2,308
    Images
    373
    Many thanks all..... I will give the Rodinal 1:50 a try.

    Tony

  8. #8
    JPD
    JPD is offline
    JPD's Avatar
    Join Date
    Mar 2007
    Location
    Sweden
    Shooter
    Medium Format
    Posts
    772
    Let us know how it went!

  9. #9
    tony lockerbie's Avatar
    Join Date
    Feb 2006
    Location
    Bega N.S.W. Australia
    Shooter
    Multi Format
    Posts
    2,308
    Images
    373
    Thanks, shall do when I get a moment. Also found some Neofin Doku, which I may give a go as well.

    Tony

  10. #10
    2F/2F's Avatar
    Join Date
    Apr 2008
    Location
    Los Angeles, CA
    Shooter
    Multi Format
    Posts
    8,008
    Images
    4
    Any regular black and white developer will work. Rodinal 1/10 must be their suggestion for high contrast results. Aside from its color response, this film behaves no differently than any other black and white film, so just apply your knowledge of developing panchromatic films and you should be fine.
    2F/2F

    "Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."

    - Rob Tyner (1944 - 1991)

Page 1 of 2 12 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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