Shot in Existing Darkness: Recommendations for Development of HP5 shot at 3200 ISO?

Discussion in 'B&W: Film, Paper, Chemistry' started by BradleyK, Aug 18, 2013.

  1. BradleyK

    BradleyK Member

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    Expecting to shoot in a "modern facility" (the Jasper Activity Center doubles as a hockey arena in the winter months), I brought along a brick of HP5 and 6 rolls of Delta 3200 to photograph the Heritage Rodeo last night. The Delta 3200 was to be my "insurance policy;" I had expected to shoot the HP5 at 1600 and process it in Diafine. However, the place was like shooting in the Black Hole of Calcutta: pot lighting illuminated some areas up to a stop-and-a-half brighter than others; I decided to forgo color entirely and concentrate on the black and white. At ISO 3200, the best I could do was to shoot the 300mm wide open at 1/500h at F2.8 and the 80-200mm at the same. Quickly running out of Delta 3200 ( I have never shot rodeo before, hence the large amount of film for a 2 1/2 hour event), I turned to the HP5. While I have shot both HP5 and Tri-X at ISO 1600, 3200 is a first. So, what developer would/should I use for this film? I doubt I will print larger than 8"x12", if that influences the answer.
     
  2. richyd

    richyd Member

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    Check the Ilford data sheets I recall they recommend Microphen and DDX for push processing HP5 up to 3200.
     
  3. pentaxuser

    pentaxuser Subscriber

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    Never used Microphen but it is said to increase film speed by maybe half a stop so you have a film at, say EI 600 which needs pushing by about 2.5 stops to 3200. Sounds do-able with the usual drawbacks for pushing.

    I'd be interested in how HP5+ pushed to 3200 compares to D3200 at EI 3200 and you are in the ideal position to let us know, having shot both at same event and in same lighting conditions

    It might help some here to decide if HP5+ pushed to 3200 beats D3200 at 3200.

    I for one would appreciate scans of each film for comparison and your conclusions. Thanks

    pentaxuser
     
  4. ntenny

    ntenny Member

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    I did some tests with HP5+ in the developer Donald Qualls formulated and called "Super Soup", and found that 3200 seemed to be about right. Negative scans at http://www.flickr.com/photos/ntenny/sets/72157620654443216/, at speeds from 1600 to 12800 (yes, really).

    It's basically a strong dilution of HC-110 using Dektol stock instead of water, with the addition of some ascorbic acid. Powerful stuff, but producing surprisingly normal-looking negatives for such an extreme push.

    -NT
     
  5. pentaxuser

    pentaxuser Subscriber

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    The shot of Sadie at 12800 looks pretty amazing. She may be slightly better at 6400 but this may simply because she is closer.

    How grainy was the film and was it 120 or 135, where might we find the Donald Qualls "Super Soup" that you used?

    Will a search of APUG using the words "Super Soup" find it?

    Thanks

    pentaxuser
     
  6. ntenny

    ntenny Member

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    Thanks for the kind words. That was 120; I don't think I've used it on 35mm. Remember that scanners deal well with thin negatives, though, so in a wet print I suspect it'd be quite challenging to get any shadow detail in the higher-EI shots.

    The problem with a white dog as a subject is that she doesn't really showcase the shadow detail, so you have to look to the background to see much about the speed gain. It'd be interesting to see actual curves for this developer, but I don't have the equipment or the patience.

    The recipe has been posted on APUG, and should still be at http://silent1.home.netcom.com/Photography/Dilutions%20and%20Times.html along with some other interesting things. Donald Qualls used to be a regular participant here; I don't know if he's still lurking or has moved on to other things or what.

    -NT
     
  7. pentaxuser

    pentaxuser Subscriber

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    Thanks for that link Nathan. It's bookmarked now.

    pentaxuser
     
  8. Lamar

    Lamar Member

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