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Thread: Swirly stuff on the plates

  1. #1

    Swirly stuff on the plates

    http://homepage.mac.com/ronaldcowie/swirly/]I've been getting these swirly things on my plates which indicates uneven silvering. Why is this? Silver bath temperature is about 66 degrees.

  2. #2

    Swirly stuff on the plates

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  3. #3
    500+ Posts jon.oman's Avatar
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    Swirly stuff on the plates

    Emulsion too thick as applied?

  4. #4

    Swirly stuff on the plates

    Could be too thick a collodion. Try adding more ether/alcohol. Before that though, how long do you wait before placing the plate into the silver bath after flowing your plate? In cooler weather, I wait about 40 seconds and decrease that time as the temperatures increase. The reason being that if the collodion is not all skinned over, you can get anomolies on the plate when placing the plate into the silver bath. Also make sure your plate goes in smoothly and without hesitation.

  5. #5

    Swirly stuff on the plates

    One other question, do you use a tray for your silver bath, or a slightly angled off vertical bath? I find the latter gives much better results as any contaminants usually fall off the plate rather than stay on there during sensitization.

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