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Thread: Specific humidity setting

  1. #1

    Default Specific humidity setting

    Hi,

    Understand the recommended setting is around 50% plus minus.
    Reason for not setting it lower so that it will not dry out the lubricant.

    But if you only have stuff like filter, CDs, which have no moving parts or lubricant,
    is there any concern to set it as low as possible ?

    i suppose CPL will be different as is contain some gel (or ???).


    Rgds

  2. #2
    Moderator catchlights's Avatar
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    Default Re: Specific humidity setting

    if you are so particular about it, how about get a few dry cabinets to have different setting for different items?
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  3. #3
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    Default Re: Specific humidity setting

    Quote Originally Posted by redwine View Post
    Hi,

    Understand the recommended setting is around 50% plus minus.
    Reason for not setting it lower so that it will not dry out the lubricant.

    But if you only have stuff like filter, CDs, which have no moving parts or lubricant,
    is there any concern to set it as low as possible ?

    i suppose CPL will be different as is contain some gel (or ???).


    Rgds
    Different items require different settings in the Dry Cabinet.

    Paper (BC, Marriage Cert, etc) requires a setting of about 30-35%.

    Camera equipment about 40-45%.

    This is according to the settings recommended in the manual.

    I don't think setting as low as possible is what we should be achieving. Extremity is not a good idea.

  4. #4

    Default Re: Specific humidity setting

    Thanks for the input.

    I was actually thinking to put some of my seldom use filter and accessories in a dry box with lots of silica gel.
    i have some really big packet of silica gel from my friends and these thing go pretty low,
    maybe due to the small box.

    Just want to make sure i'm not doing any damage.


    Rgds

  5. #5

    Default Re: Specific humidity setting

    Box with silica gel difficult to control.

    Look for different categories for storage. I have my electronics and optical accessories stored at 40%, and photographic/lenses stored at 45%. Doubt if your spare filters and accessories will actually 'dry' out and crumble.

  6. #6
    Senior Member zac08's Avatar
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    Default Re: Specific humidity setting

    Quote Originally Posted by redwine View Post
    Thanks for the input.

    I was actually thinking to put some of my seldom use filter and accessories in a dry box with lots of silica gel.
    i have some really big packet of silica gel from my friends and these thing go pretty low,
    maybe due to the small box.

    Just want to make sure i'm not doing any damage.


    Rgds
    Quote Originally Posted by Dream Merchant View Post
    Box with silica gel difficult to control.

    Look for different categories for storage. I have my electronics and optical accessories stored at 40%, and photographic/lenses stored at 45%. Doubt if your spare filters and accessories will actually 'dry' out and crumble.
    As DM has mentioned, it's VERY hard to control the humidity with just silicca gel. Most who start out that way then get really bothered by all the changing and constant checking. And futhermore, it's not foolproof. Lots get equipment attacked by fungus in the end.

    Get a decent dry cabinet and save yourself the hassle.
    Michael Lim
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  7. #7
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    Default Re: Specific humidity setting

    My previous dry box was a DIY one using silicon gel, very troublesome.

    It only takes approximately 2 days for it to completely turn pink.

    In the end I just got myself a Digicab, I set it to between 45%~55%. Plus, it looks a whole lot cooler.

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