White blotches on my developed negatives

Discussion in 'Medium Format & Large Format' started by Tkraz, Nov 25, 2017.

  1. Tkraz

    Tkraz TPF Noob!

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    So a long time back I dabbled shooting in digital and when I recently considered picking the camera back up again, I thought - no that would be too easy so bought a Hasselblad 503CX and began my first roll in B&W.

    Today I developed them, and there are some basic errors in the shots and some things I know I caused in a clumsy first attempt at developing. I used a dark bag and a patterson dev tank.

    I can give more specifics on the fixer, developer, photo-flo etc but I feel like this is something I did wrong in terms of timing or technique but upon searching the internet I wasn't able to find any simple explanation for why this happened.

    Is anyone able to diagnose this?

    Appreciate the support!


     

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  2. dxqcanada

    dxqcanada Been spending a lot of time on here!

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    How many frames show this artifact ?
     
  3. limr

    limr Moderator Staff Member Supporting Member

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    Odd. Seems more like a light leak than a developing error.

    Edit: Same question as dxq - what do the other frames look like?
     
  4. john.margetts

    john.margetts No longer a newbie, moving up!

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    In order for the white blotch to be a developing error, the developer would have to have massively over-develop that area. Not going to happen. It could be contamination with fixer before development - fixer on fingers while winding the film onto the spiral but I would have thought very unlikely. (Edit: no it couldn't. Fixer contamination would give a dark blotch.)

    It really looks like a light leak. That can happen if you use a defective changing bag to load the developing tank and can also happen if the tank lid is not on right. Other than those two, it is down to the camera.
     
    Last edited: Nov 26, 2017
  5. john.margetts

    john.margetts No longer a newbie, moving up!

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    To be pedantic, the marks on the negative are dark, contrary to the thread title.
     
  6. gk fotografie

    gk fotografie èn...dat zoeken we op! Supporting Member

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    Has the effect been one-off or is it more common, especially in the same place on negatives?
    There could be a cause in the shutter of the camera body, that it has a small dent / bend and therefore allows a small amount of light through.
    This auxiliary shutter is located at the back of the Hasselblad 500series bodies, straight in front of the filmrolls.
    I do not say that it is, but it is possible that a small amount of light falls on the film due to damage and it doesn't even have to occur on each negative.
    You can check a lightleak by using a piece of film or photographic paper in the filmback of the camera.
    503.jpg
     
  7. Gary A.

    Gary A. Been spending a lot of time on here!

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    If it is a gray-ish white ... it could be a bad job of rolling the film onto the reel and the film touched. Where the film touched there would be little to no development or fix. Usually those are big blotches.
     
  8. john.margetts

    john.margetts No longer a newbie, moving up!

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    That would be apparent on the negative as it would be opaque rather than dark. The op needs to look at the negatives rather than a positive scan of the negatives. A photograph of the negatives might help us help him.
     
  9. Gary A.

    Gary A. Been spending a lot of time on here!

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    I didn't see the image.
     
  10. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I vote for light leak.
     
  11. compur

    compur Been spending a lot of time on here!

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    Me too.
     

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