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Thread: trouble from unknown

  1. #31

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    Re: trouble from unknown

    Yes, the emulation is very soft, even your finger tip can scratch it.
    However, I m confident to say that until now I have no problem anymore with scratch in xray with tray.

    Anyway, I think the advantage bag was to agitate film evenly.

    This weekend I gonna try develop film in total dark without laser to eliminate of laser point problem.

    Cheers,

  2. #32
    bob carnie's Avatar
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    Re: trouble from unknown

    Polaroid had a 4x5 holder you could slide film in and keep collecting, it was used for washing off site. Something like this could be devised for your xray film and still use the bag.

    Quote Originally Posted by Dcohio View Post
    I only use freezer bags for developing xray film since it has double sided emulsion. I only put 1 sheet of xrayfilm per bag.i tried tray processing xray once and had very uneven development due to the ridges in the tray and loads of scratches. The emulsion is extremely soft. For regular film I tray process. There was a thread about 9 months ago where someone talked about the use of freezer bags for xray film.
    Doug

  3. #33
    Cor's Avatar
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    Re: trouble from unknown

    Quote Originally Posted by Bush View Post
    +I put a in developer one side for 20 seconds and turn to other side until I can see the highlight not out of details


    Any comments?
    How long is your total development time? Times below 3-4 minutes can be very troublesome, and can cause your problems. And I second (third?) the pre-wash


    Best,

    Cor

  4. #34

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    Re: trouble from unknown

    I think that time is not a problem with xray since I can see clearly the processing with safe light.

    Last weekend, I tried to agitate more carefully and minimum of safe light as much as possible. And the result



    It seems to me that a much improvement. Anyway, I still see sth uneven

  5. #35
    bob carnie's Avatar
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    Re: trouble from unknown

    Actually more careful agitation is not helpful, in the first 15 seconds you should make sure there is constant agitation to get the developer all over the film, slow and deliberate is not a good thing. At least in the first minute, your goal is to make sure you flood the film emulsion with the developer.
    Quote Originally Posted by Bush View Post
    I think that time is not a problem with xray since I can see clearly the processing with safe light.

    Last weekend, I tried to agitate more carefully and minimum of safe light as much as possible. And the result



    It seems to me that a much improvement. Anyway, I still see sth uneven

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