Acros 100 (120) Reciprocity Question

Discussion in 'B&W: Film, Paper, Chemistry' started by akfotog, Feb 6, 2013.

  1. akfotog

    akfotog Subscriber

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    I have been an avid shooter of Acros 100 for several years, and plan on doing some long exposure photography soon. My experience with films like Kodak TMax is that you have to adjust the exposure times for 2 seconds or more; however, in reading the data specs on Acros 120, it appears that no adjustments are necessary for exposures longer than 120 seconds. This seems to be an extremely long time, can this be true, and does anyone have any experience with long exposures with this film that can give any further insight? Thanks in advance.
     
  2. Jeff L

    Jeff L Subscriber

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    Though I do not know the exact limit of Acros, I have read many places about it's amazing reciprocity characteristics.
     
  3. Mainecoonmaniac

    Mainecoonmaniac Subscriber

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  4. Robert Hall

    Robert Hall Subscriber

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    That is correct. It's an amazing film.

    Do remember however that all black and white films can more easily be corrected for in the darkroom with over as opposed to under exposure.
     
  5. akfotog

    akfotog Subscriber

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    Thanks for the responses all. I love this film and can't wait to try long exposures with it.
     
  6. Nightfly

    Nightfly Member

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  7. Mainecoonmaniac

    Mainecoonmaniac Subscriber

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    Great work!

    I can see. Great job. I've always hated reciprocity failure with film. I get empty shadows and highlights blown out on my negs. Fuji Acros seems to have less of a problem. I've tried to tackle this problem with other films with stand development.
     
  8. Rich Ullsmith

    Rich Ullsmith Subscriber

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    Amazing stuff there, Mister Fly. You got that dialed in pretty tight.
     
  9. Klainmeister

    Klainmeister Member

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    I did a series of shots with moonlight where I didn't adjust for reciprocity. Looking at the negs laid out, anything past 6 minutes needs to be extended by 25%, but beyond that, I didn't shoot on the roll.
     
  10. akfotog

    akfotog Subscriber

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    Awesome work Nightfly, can't wait to try this.
     
  11. Klainmeister

    Klainmeister Member

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    Wow, just looked at these. Well done sir! Those are amazing!
     
  12. Nightfly

    Nightfly Member

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    Acros does keep good contrast over lengthy exposures without the shadows blocking up. Tonality can be somewhat flat in even lighting, but this can be addressed in post processing after scanning. I've used Xtol 1:1 standard development for all these images and it offers good accutance and fine grain. I'm pretty happy with the combination.


    The only other films that can approach Acros in reciprocity are TMAX 100 and Delta 100. Acros has been the gold standard for night shooting for some time. It is a joy to shoot.

    Jim
     
  13. Nightfly

    Nightfly Member

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    Thank you for the kind remarks guys. I also recommend Night Photography by Lance Keimig. Film and development choices are covered as well as exposure. A brief history of night photography highlights the books opening. Many examples of photography with Acros are covered.
     
  14. chriscrawfordphoto

    chriscrawfordphoto Member

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    Here are a couple of multi-minute exposures done on Acros. These were both about 5 minute exposures.

    [​IMG]


    [​IMG]
     
  15. akfotog

    akfotog Subscriber

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    These are great as well Chris. I've got to get out and try this, thanks for sharing.
     
  16. cjbecker

    cjbecker Member

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    Not noting on long exposure, But Acros is one amazing film. I/m not a fan of t grain films but there is something about Acros. One of my 3 images that I've ever made, that I would call my best work was shot on Acros. I has such a beautiful curve and smoothness to it.
     
  17. Richard S. (rich815)

    Richard S. (rich815) Subscriber

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    Acros is unsurpassed for night shooting. I've used it extensively and have attended workshops with the above-mentioned Lance Kemig. Great guy, great knowledge. Most of my shots are done for about 5-10 minutes at f/5,6 depending on how much ambient light there is.

    Here's a few examples of my work with Acros at night:

    [​IMG]
    Mare Island Nocturne AlumNight Hasselblad500CM 80Planar 150Sonnar Acros D-76 by rich8155 (Richard Sintchak), on Flickr

    [​IMG]
    Lee Vining CA Hasselblad500CM Acros D-76 by rich8155 (Richard Sintchak), on Flickr

    [​IMG]
    Pt Bonita Hasselblad500CM 80Planar 150Sonnar Acros D-76 by rich8155 (Richard Sintchak), on Flickr

    [​IMG]
    Portero Hill, China Basin ContaxRX 35PCDistagon Acros @100 Diafine by rich8155 (Richard Sintchak), on Flickr

    my whole Acros/night Flickr set here:

    http://www.flickr.com/search/?q=Acros+night&w=38698047@N00&s=int
     
  18. akfotog

    akfotog Subscriber

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    Very nice work Rich. Will be starting to capture some images soon, thanks for sharing.
     
  19. Richard S. (rich815)

    Richard S. (rich815) Subscriber

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  20. atomicthumbs

    atomicthumbs Member

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