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

  1. #5411

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

    What speed did you rate the HR-U at? I have a box I have been experimenting with but have not had results nearly as good as yours, but I have been developing it with Rodinol 1+25, not a home made Rodinol formula

  2. #5412
    Corran's Avatar
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    Re: Use of X-ray film: technical discussion with example images

    HR-U is around 50-80 EI generally and your Rodinal should be diluted to 1:100 for normal development - start around 6-7 minutes. At 1:25 I imagine your burning out your highlights/midtones pretty quick.
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  3. #5413

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

    Thanks. I shot a test sheet earlier today at 50 with exposure determined by a incident meter and developed 7 min in rodinol 1:100 (I don't know why I thought I had been using 1:25). Results were ok but not spectacular. Highlights were still a bit blown out and I cant seem to tame the contrast, but I think I will keep experimenting. Just wanted to make sure I was in the right range. Previously I had been shooting at 25 and getting mixed results.

  4. #5414

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

    I’ve tamed contrast by reducing agitation.

  5. #5415
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    Re: Use of X-ray film: technical discussion with example images

    A good suggestion. How are you developing - tray? Or something else?
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  6. #5416
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    Re: Use of X-ray film: technical discussion with example images

    Quote Originally Posted by Corran View Post
    HR-U is around 50-80 EI generally and your Rodinal should be diluted to 1:100 for normal development - start around 6-7 minutes. At 1:25 I imagine your burning out your highlights/midtones pretty quick.
    I began to use Metolal instead of Rodinal, in a 1 + 50 dilution. It gives better sensitivity, judging by my tests.
    Click image for larger version. 

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  7. #5417

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

    Quote Originally Posted by Corran View Post
    A good suggestion. How are you developing - tray? Or something else?
    Now I’m using tanks and nitrogen burst, but previously tanks and raising and lowering the hangers.

  8. #5418

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

    Did anyone buy any of the Foma Indux R4 NDT x-ray film?
    I am just wondering if anyone managed to lower it's contrast somewhat.

  9. #5419
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    Re: Use of X-ray film: technical discussion with example images

    Click image for larger version. 

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    Fujifilm x-ray green sensitive
    Development in rodinal 1:50 (R09) time: 'by inspection'

    kind regards, fred

  10. #5420

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

    Is X-ray film disappearing?
    I use FP4+ as well as X-ray in 5x12 and 8x10. Yesterday I tried to order more 5x12 x-ray only to find no listing for it. Today I will order a supply of 8x10 while it's still available. Apparently the warning of X-ray film slowly disappearing is coming true, especially in some sizes. I have a reasonable supply of FP4+ and will probably order more during the next special order.
    I will have to choose carefully between the films when photographing. There are times when the scale of X-ray, which is orthochromatic, better suits the image. I also have some Ilford Ortho,but it does not come in 5x12, and is far more expensive.

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