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Thread: Use of X-ray film: technical discussion with example images

  1. #4871
    Old School Wayne
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    Re: Use of X-ray film: technical discussion with example images

    I can see the ghosts.

  2. #4872

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    Re: Use of X-ray film: technical discussion with example images

    I could feel the ghosts! There was a murder/suicide committed at one time, there is one bedroom that you can feel the weight of something. Gulp! going back next week to take some more pics

  3. #4873
    Vince Donovan
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    Re: Use of X-ray film: technical discussion with example images

    Click image for larger version. 

Name:	IMG_5714.jpg 
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Size:	37.9 KB 
ID:	171826

    I've been reversal processing X-ray film, giving a big beautiful (if slightly blue) black and white transparency. This is single-sided Carestream.
    Quickie formula:
    First developer: Ilford PQ Universal 1:5 8 minutes@68 degrees F
    Bleach: Potassium Dichromate in Sulfuric Acid solution
    Clearing: Sodium sulfite
    Re-exposure: 1 minute
    Second Developer: Ilford PQ Universal 1:5 5 minutes@68 degrees F

    Note scratches on this example! The bleach makes the emulsion softer and even easier to scratch. This example was tray processed, leading to scratches. Usually I tank process, which gives less problems.

  4. #4874

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    Re: Use of X-ray film: technical discussion with example images

    Quote Originally Posted by vdonovan View Post
    Click image for larger version. 

Name:	IMG_5714.jpg 
Views:	64 
Size:	37.9 KB 
ID:	171826

    I've been reversal processing X-ray film, giving a big beautiful (if slightly blue) black and white transparency. This is single-sided Carestream.
    Quickie formula:
    First developer: Ilford PQ Universal 1:5 8 minutes@68 degrees F
    Bleach: Potassium Dichromate in Sulfuric Acid solution
    Clearing: Sodium sulfite
    Re-exposure: 1 minute
    Second Developer: Ilford PQ Universal 1:5 5 minutes@68 degrees F

    Note scratches on this example! The bleach makes the emulsion softer and even easier to scratch. This example was tray processed, leading to scratches. Usually I tank process, which gives less problems.
    Can you tell me the advantages of making a positive? Is this something akin to making solarized negatives, these look quite spectacular on the right subject and also require a second exposure.
    Last edited by andrewch59; 10-Nov-2017 at 22:04. Reason: add information

  5. #4875
    Vince Donovan
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    Re: Use of X-ray film: technical discussion with example images

    There is no real advantage, other than that it is unusual. In fact, I find I get less control over the resulting image because the two developers both essentially go to completion. It's hard to control contrast, so I have to be more aware of contrast when shooting.

    I mount these 8x10 transparencies in back-lit LED frames. They look quite beautiful with, as you say, the right subject.

  6. #4876
    Randy Moe's Avatar
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    Re: Use of X-ray film: technical discussion with example images

    Quote Originally Posted by vdonovan View Post
    There is no real advantage, other than that it is unusual. In fact, I find I get less control over the resulting image because the two developers both essentially go to completion. It's hard to control contrast, so I have to be more aware of contrast when shooting.

    I mount these 8x10 transparencies in back-lit LED frames. They look quite beautiful with, as you say, the right subject.


    I once enlarged onto 4 sheets of 14x17" X-Ray, an image sized to the 4 panels. Hung in a backlit window. Only noticeable at night. No fade after a year.

    Heck, I made an X-Ray positive print of a new clinic and gave it to my Doctor, who had no light box. As I found out...

  7. #4877

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    Re: Use of X-ray film: technical discussion with example images

    Quote Originally Posted by vdonovan View Post
    There is no real advantage, other than that it is unusual. In fact, I find I get less control over the resulting image because the two developers both essentially go to completion. It's hard to control contrast, so I have to be more aware of contrast when shooting.

    I mount these 8x10 transparencies in back-lit LED frames. They look quite beautiful with, as you say, the right subject.
    Randy I remember you displaying them on the thread, looks pretty spectacular.
    I have just dusted off an old book called "Photographic Amusements" by Fraprie O'Connor, it has a section on BAS-relief, combining positives and negatives to produce a unusual and sometimes 3d effect. Seems a similar procedure you are doing

  8. #4878

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    Re: Use of X-ray film: technical discussion with example images

    Supposed haunted house, though I never saw anything. Super Angulon, 14 sec exposure, F22, developed in RO9 12 min 1:150
    Attached Thumbnails Attached Thumbnails beryl.jpg  
    Last edited by andrewch59; 16-Nov-2017 at 15:30. Reason: erroe

  9. #4879
    Old School Wayne
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    Re: Use of X-ray film: technical discussion with example images

    I don't see anything either.

  10. #4880

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    Re: Use of X-ray film: technical discussion with example images

    Well obviously. X-rays go straight through ghosts...

    Neil

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