Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,692   Posts: 1,548,957   Online: 762
      
Results 1 to 8 of 8
  1. #1
    Joe VanCleave's Avatar
    Join Date
    Jan 2004
    Location
    Albuquerque, New Mexico, USA
    Shooter
    Pinhole
    Posts
    484

    Quarai Ruins Paper Negative Set

    Fujinon 135mm lens on Speed Graphic, Arista grade 2 RC paper, preflashed, rated at ISO12. The Quarai Ruins, part of the Salinas National Monument in central New Mexico.

    ~Joe















    Lastly, my friend Guy who accompanied me:


    ~Joe

  2. #2

    Join Date
    Feb 2005
    Shooter
    Multi Format
    Posts
    218
    Very nice. From the title I was expecting a story about some ruined photos, not photos of ruins. But I like your version better.

  3. #3

    Join Date
    May 2013
    Location
    US
    Shooter
    Large Format
    Posts
    2,060
    Would you kindly discuss your pre-flashing procedure? Thanks.

  4. #4
    Joe VanCleave's Avatar
    Join Date
    Jan 2004
    Location
    Albuquerque, New Mexico, USA
    Shooter
    Pinhole
    Posts
    484
    Tom,

    Here's a brief description of my paper negative technique.

    The biggest challenge I have in paper negative scenic photography is taming excess contrast. Paper is primarily blue and UV sensitive. MG papers have a high contrast emulsion that's blue sensitive, which will be activated by daylight. Some people have had success taming excess contrast of MG papers by using yellow filters over the lens, but I find the speed loss to be excessive, as compared to using graded paper of a moderate contrast grade (like grade 2). The nice thing about graded papers is that their contrast is not color dependant.

    Firstly, you need to find your paper's working Exposure Index, through empirical testing. The Arista brand RC grade 2 paper I use rated at EI=12.

    Second, you need to settle on a development method that gives a moderate contrast to the negatives while retaining adequate development (i.e. no mottling in the image, as would be the case with underdevelopement). I use paper developer diluted around 1+15, but find the contrast to be excessive unless the developer is used and/or aged. Freshly mixed developer will give noticably higher contrast to the negatives. I keep my used developer in a 1 liter container, filled almost to the top and secured with a cap to prevent excess oxidation.

    Lately I've been using Ilford PQ liquid paper developer concentrate, but have had good results with Ilford Universal liquid concentrate, and also Agfa Neutol WA. The choice has more to do with availability than performance. I prefer liquid concentrates over powdered developers simply because of the keeping properties of the liquid concentrate over a pre-mixed stock solution from powder.

    Even with the right developer to yield a moderate contrast negative, often the shadow details from a high contrast scene are obscured. So a slight pre-flash of exposure is often all that's necessary to raise the base exposure sufficiently to gain visible shadow detail in the negative. This moderate exposure won't over-expose the highlights, because of the logarithmic nature of the exposure values. For instance, a pre-flash exposure sufficient to render zone II shadow details is (VIII-II=2^6=64) or 1/64 of a zone VIII exposure, hardly noticeable in the highlight exposure.

    I use a pre-flash light source rigged at a fixed distance above my darkroom table, and through experimentation have determined exposure times for grade 2 paper as well as Harman DPP paper. The light source is a type S-11 light bulb (standard household AC base, round white frost globe about the size of a table tennis ball, 7.5 watts), fixed inside a metal sauce can housing with a 5mm aperture hole to limit the light exposure. The light housing I suspend 30 inches above the table. I use a preflash time of 8 seconds for grade 2 paper and 3.5 seconds for Harman DPP. These times were necessary because my darkroom timer lacks the sub-1 second resolution required of a brighter light source, and warmup time of the lamp filament can become an important process parameter if the time is too short.

    I had initially tried using my enlarger with lens set to f/32, but even then the pre-flash exposure times were too short (1-2 seconds) to accurately time with my old Gralab timer, hence the need to limit the light source intensity to gain longer exposure times.

    I've also tried post-flashing paper negatives, after the in-camera exposure and before processing, and the results are very similar, but not exact. I suspect the pre-flashing enables the deep shadow portion of the image to overcome the emulsion's hysterisis.

    After I've calibrated my process, pre-flashing is a very simple thing to do. Unload fresh paper from its box, set the timer, flash the paper, then load into the camera or film holders. Processing paper negatives is also simple, as the used developer typically ages pretty well, requiring only a development by inspection to ensure adequate development time.

    Finally, I should mention, as we're getting on toward the colder months here in the northern hemisphere, that ensuring adequate developer temperature is important to yielding good results. I ensure that my developer mixture is around 68f, at which temperature I've calibrated my process to perform optimally.

    ~Joe

  5. #5

    Join Date
    Dec 2009
    Location
    Merritt Island, FL
    Shooter
    Medium Format
    Posts
    18
    Joe, I've been mulling over the idea of using some Harman DPP myself, and I have to say that I really appreciate the level of detail you've provided regarding your process. I won't try to pretend that I think I can simply use your recipe and get results as outstanding, but it gives me a good idea of a starting place and the type of effort required. Thanks. But... who is Quarai, and how did he ruin your paper negatives? They look good on my monitor, although the superintendent might need to spruce the place up a bit. Or is Quarai your friend Joe's last name? I don't think that one pic ruined the set.

    Nice work.

  6. #6
    Rick A's Avatar
    Join Date
    Mar 2009
    Location
    north central Pa
    Shooter
    Multi Format
    Posts
    5,983
    Images
    33
    Quarai is an abandon village in central New Mexico, not the fishing boat captain James Bond used to get to the Island of Dr.No. Joe V is the astute photographer that captured these incredible images therein. The photos are of the ruins, they are anything but ruined. HAHAHAHAHahahahahah
    Rick A
    Argentum aevum

  7. #7
    Joe VanCleave's Avatar
    Join Date
    Jan 2004
    Location
    Albuquerque, New Mexico, USA
    Shooter
    Pinhole
    Posts
    484

  8. #8
    Bill Burk's Avatar
    Join Date
    Feb 2010
    Shooter
    4x5 Format
    Posts
    3,342
    Images
    46
    Joe VanCleave,

    I enjoyed your photographs immensely, great shots!



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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