Crack - like pattern on EF-M 15-45mm lens

Discussion in 'Beginner Questions' started by Redstoners_97, Oct 22, 2021.

  1. Redstoners_97

    Redstoners_97 New Member

    Joined:
    Oct 22, 2021
    Messages:
    3
    Equipment:
    EOS M100, EF-M 15/45 lens
    I recently took my camera out of it's bag for lens cleaning ( using lens cleaner fluid and a microfiber cloth ) and I managed to capture this photo below.

    20211022_225145.jpg

    What is that crack - like pattern ? I live in Purwakarta, West Java, Indonesia and the air here is indeed quite humid and hot, but I place my camera bag with the camera and the lens on my server room ( air conditioned 24/7, set to 24°C on the remote ) for long storage ( I usually take some photos every 2 months or so ). Is it a lens fungus or what ? :-/

    Images took using the lens :

    20211022223952_IMG_0362.JPG

    20211022224235_IMG_0363.JPG
     

  2. GDN

    GDN Well-Known Member

    Joined:
    Jul 22, 2018
    Messages:
    2,213
    Location:
    South Island, NZ
    Equipment:
    A little Canon stuff
    To me, this looks like fungus on the lens elements.

    Gary
     
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  3. Caladina

    Caladina Well-Known Member

    Joined:
    Jan 30, 2020
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    1,864
    Equipment:
    Canon M50
    Canon 18-45mm m, Canon 18-150mm m, Canon 55-200mm m, Canon 22mm m, Canon 28mm m macro,
    Sigma 100-400c ef, Sigma 18-35mm art ef,
    7artisans 7.5mm m, Laowa 100mm macro ef, laowa 9mm zeroD m, Vintage M42 Lenses:
    Ashi Super - Takumar 1.8 / 55mm,
    it looks like the fungus i've seen on older lenses
     
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  4. Redstoners_97

    Redstoners_97 New Member

    Joined:
    Oct 22, 2021
    Messages:
    3
    Equipment:
    EOS M100, EF-M 15/45 lens
    So my lens is now infested with lens fungus ? :-( What should I do to fix it ? Is it better to just buy a new lens and store the camera and it's lens in a different place ? Or maybe I could clean the fungus inside ? ( bringing the lens and the camera to a local camera professionist in case the fungus spreads to the CCD ) Buying a new EF-M lens is not cheap here in Indonesia ( 15-45mm one cost ~IDR.3.200.000,00 on local store which is quite expensive for me ).
     
  5. GDN

    GDN Well-Known Member

    Joined:
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    2,213
    Location:
    South Island, NZ
    Equipment:
    A little Canon stuff
    I used to live in the tropic's a few years ago, Darwin Australia. I did have a problem with fungus and lenses. As soon as I saw this on a lens, I sent the lens off for repair as it was the front element that was effected. I also brought a dry box to store my camera gear in. I still use a dry box now, and I have had no further problems.

    I have read that using a UV light will kill or stop the growth. If that is true or not, I don't know. It maybe worth you doing a little research on that.

    Gary
     
  6. Redstoners_97

    Redstoners_97 New Member

    Joined:
    Oct 22, 2021
    Messages:
    3
    Equipment:
    EOS M100, EF-M 15/45 lens
    Yeah, I guess I'll try to go to the professionist first and let them clean up the lens. Didn't really know if it'll get infested / infected again though. Only time will tell...

    Thank you for the replies BTW :)

    Atala
     
    Last edited: Oct 23, 2021
  7. Caladina

    Caladina Well-Known Member

    Joined:
    Jan 30, 2020
    Messages:
    1,864
    Equipment:
    Canon M50
    Canon 18-45mm m, Canon 18-150mm m, Canon 55-200mm m, Canon 22mm m, Canon 28mm m macro,
    Sigma 100-400c ef, Sigma 18-35mm art ef,
    7artisans 7.5mm m, Laowa 100mm macro ef, laowa 9mm zeroD m, Vintage M42 Lenses:
    Ashi Super - Takumar 1.8 / 55mm,
    UV light works on vintage lenses its aided by the fact you can manually open the aperture off camera and leave the front and rear lens caps off while it sits in the sun for a day or two.
    I'd check the price of a second hand kit lens as they are very cheap over here in london, it may be cheaper than the repair cost.
    the modern lenses can be alot more difficult than the vintage ones to disassemble and clean, esp the cheaper ones that are mostly glued and bonded together

    Gary's suggestion of a dry box is definatly the way to go esp in humid climates
     

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