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Thread: Taking film in and out of the freezer

  1. #31

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    Re: Taking film in and out of the freezer

    Quote Originally Posted by Alan Klein View Post
    Isn't it the opposite? If you take your camera used outside in cold weather and bring it into a warm house, then condensation occurs. Not the other way around. That's why you don't open the sealed cold film pack from the freezer until it has thawed out to room temperature.
    that's not the opposite of what i said, that's half of what i said. any time you cool air down past the dew point you get condensation. doesn't matter if that air is inside a plastic bag of film being cooled because you just placed it in a freezer or the air that gets into the bag when you open it and is cooled by the cold film you just took out of the freezer. if you take your camera outside in cold weather the indoor air in your camera will cool down and cause condensation.

  2. #32

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    Re: Taking film in and out of the freezer

    Quote Originally Posted by Kiwi7475 View Post
    Correct. Condensation is about cooling air to its dew point, or saturating it with water vapor so that it cannot hold more water. The typical condensation around a soda can happens when warm air hits the cold surface, it reaches its dew point and condenses. So you need to cool the air by an object to create condensation around that object.
    you're just saying exactly what i said in the comment he's objecting to...

  3. #33

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    Re: Taking film in and out of the freezer (color transparency film)

    By the way, depending on temperature and humidity level, you can also condense out if you keep film in the fridge ó itís not only a freezer issue. For example at 50% relative humidity, the dew point of air at a temperature of 12C is about 2-3C which is the typical cooling temperature of a fridge.

  4. #34
    Alan Klein's Avatar
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    Re: Taking film in and out of the freezer

    You could also use silica desiccant packs to help keep the film dry in the freezer and elsewhere. Just stick the film and silica packs in a ZipLock. The packs absorb moisture.
    https://www.amazon.com/Dry-Premium-P.../dp/B00DYKTS9C

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