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  1. #1

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    Apr 2006
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    cleaning multigrade enlarging filters

    hi can anyone tell me what to use and how to clean my enlarging filters.
    thanks
    mitch

  2. #2

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    I just cleaned my Kodak polycontrast filter set, which is plastic, and I just used glass cleaner and a lint-free well laundered soft rag. They can scratch, so you need to be careful.

  3. #3
    David A. Goldfarb's Avatar
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    For polyester filters I rinse them is warm soapy water and dry them usually on a soft paper towel, flipping them occasionally to prevent drying marks.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com

  4. #4

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    I assume that by "multigrade filters" you are referring to the set provided by Ilford, which I believe are made of a form of acetate. Other filters such as the older Polycontrast filters, or the equally vintage Durst filters, are made of different materials, and so may be able to survive a wide assortment of cleaning agents.

    For the Ilford set, here's a quick outline of a safe cleaning procedure: 1. Blow away loose dust with a squeeze-type blower. 2. Brush any remaining loose dirt with a soft brush. 3. Dip a small rolled up piece of paper towel in a mild sudsy water solution, and gently apply to filter surface. A very small amount of the soap solution will do. 4. Dry with a paper towel. 5. Blow dry with the squeeze-type blower.

    Do not use the following, because they will eat into the dyes of the filter or into the plastic itself: acetone, alcohol, PEC 12, most lens cleaners, naptha/Ronsonol, Windex or other ammonia-containing cleaning solutions, household bleach, and other common cleaners.

    Again this applies specifically to Ilford's multigrade filters.



 

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