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Thread: Anti fog on housing lens reducing fog

 


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    Anti fog on housing lens reducing fog

    I have a problem with my camera housing. I have to open the housing in between dives to change the battery's because i take 200-290 pictures a dive and it kills my battery's and every time i do i end up fogging my lens is can i put defogger on it to keep it from fogging up?
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    Think it would be better to insert silica packets to absorb the moisture.

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    I would not. N
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    A defogger coats the surface with something to minimize fogging. Shooting through it might affect your image quality.

    Something like Rain-X is also a bad idea as it can etch/cloud plastic.

    Plus you'd have to rinse it and then dry the inside of the housing.

    Go with the silica packets. Amazon.com: Aquapac Desiccant Sachets, Package of 5 Individual Silica Gel Packs.: Camera & Photo

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    Don't use defog on the inside of the housing lens. If you don't clean it off properly, every single picture will be affected.

    Assemble the camera inside the UW housing in an air-conditioned room. The air inside is de-humidified. Avoid opening/closing the housing on a boat in the humid Florida air.

    Arguably, a better course of action is to be more selective with your shots. 200-290 photos per dive for a recreational diver is on the high side.
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    Quote Originally Posted by Bubbletrubble View Post
    Don't use defog on the inside of the housing lens. If you don't clean it off properly, every single picture will be affected.

    Assemble the camera inside the UW housing in an air-conditioned room. The air inside is de-humidified. Avoid opening/closing the housing on a boat in the humid Florida air.

    Arguably, a better course of action is to be more selective with your shots. 200-290 photos per dive for a recreational diver is on the high side.
    --

    Bubbletrubble

    Agree with you on the "Don't use defog" inside the housing - but I've found when putting a camera in and closing housing in an aircon cooled room (or car) - and then heading into warmer humid air or water, it would fog up the inside of the housing - subsequently I now make sure the camera/open housing is at least allowed to warm up to ambient before closing housing.

    Similar discussions going on here G10 and Canon housing failure
    Last edited by Wantonmien; September 2nd, 2010 at 03:57 AM. Reason: typo

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    My S50 Canon housing came with defog. Once I discovered silica gel moisture packets, I stopped using it. The defog didn't work very well anyway, but didn't affect the picture quality until it fogged.

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    Quote Originally Posted by Wantonmien View Post
    --

    Bubbletrubble

    Agree with you on the "Don't use defog" inside the housing - but I've found when putting a camera in and closing housing in an aircon cooled room (or car) - and then heading into warmer humid air or water, it would fog up the inside of the housing - subsequently I now make sure the camera/open housing is at least allowed to warm up to ambient before closing housing.

    Similar discussions going on here G10 and Canon housing failure

    I have had similar experiences as Wantonmien. If you keep the camera in AC and open and close it there, you should be fine.

    You get fogging issues with cameras if the air inside the housing is warmer than the water you dive in. So if you are diving in 80 degree water and it is 94 degrees outside and you open the camera and dive. The air in the camera will drop down to 80 degrees. Cool air does not hold as much moisture and the moisture in the air condenses on the housing creating "fog".

    If you want to open the camera between dives, the only option you have that will work is using dessicant packets.

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    2 Gram Indicating Silica Gel Desiccant Packs, package of 50 for $15.90 HERE
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    All right thanks guys cause my buddy said to do it but i don't trust him compared to everyone here i will just stop being cheep and go buy some silica packets at my dive shop.
    Dive Till I Die....That's my goal whats yours ???

    "Protect the Reef or there might not be one tomorrow"
    "Beschuetzt das Riff oder es vielleicht nicht ein morgen"
    ^ German ^

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