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  1. #1

    Join Date
    May 2011
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    Vancouver, Canada (I also have a USA shipping address)
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    how long does it take fungus to grow on lens?

    i bought an old 35mm rangefinder on ebay
    advertised as clean, fully tested, resealed with a pristine lens

    7 weeks later i'm checking out my equipment late one night for kicks (i know i'm not the only one who does that) and notice fungus. it covers about 0.5cm in length from the edge of the lens to the center, and spans about a fifth of the circumference of the lens

    could it have grown in the 7 weeks since seller shipped it as he claims

    kept it in my dry bedroom
    shot one roll outside when it was dry and cold (early spring)
    Last edited by chij; 05-13-2011 at 06:50 AM. Click to view previous post history.

  2. #2
    chioque's Avatar
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    Feb 2009
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    Where I'm from (hot >28C, and humid >80% climate all year round), fungus can definitely grow within that time frame, if the lens is not kept in a humidity-controlled dry cabinet

  3. #3

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    Sep 2009
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    Shropshire, UK
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    I'd guess it could grow that quickly in ideal conditions (like Kuala Lumpur!) but I would reckon it would have to be already established in the lens. In less humid conditions, fungus growth would be more likely to take years.

  4. #4
    Jim Noel's Avatar
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    Fungus growth is dependent on light intensity, relative humidity and temperature. Control of these three factors can inhibit the growth.
    [FONT=Comic Sans MS]Films NOT Dead - Just getting fixed![/FONT]

  5. #5
    Ian Grant's Avatar
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    Aug 2004
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    West Midlands, UK, and Turkey
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    Only took a month to lose some cameras and lenses stored inappropriately in the UK one Summer. A cool poorly ventilated darkroom can suffer as you get condensation from warmer air from outside. I don't store lenses (or cameras) in an unheated or basement darkroom.

    Ian



 

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