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Dead pixel or dirt?

  • 10-02-2020 12:00pm
    #1
    rubdub
    Registered Users Posts: 76 ✭✭


    Hey guys,

    I've noticed these pink dots (see attached) on my images recently. I'm shooting on a Canon 5d mkIII.

    Just wondering if anyone has ever had anything like this before?

    Wondering if it's a dead pixel, hoping it's dirt.

    Thanks.


Comments

  • #2
    endacl
    Registered Users, Registered Users 2 Posts: 22,354 ✭✭✭✭endacl


    Don’t think it’s dust...


  • #3
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 50,238 CMod ✭✭✭✭magicbastarder


    i would guess dirt or dust would block light getting to the sensor, rather than causing a spike.


  • #4
    Heebie
    Registered Users, Registered Users 2 Posts: 1,302 ✭✭✭Heebie


    rubdub wrote:
    Wondering if it's a dead pixel, hoping it's dirt.


    Looks like a problem with the image sensor or the connections to it.
    You could try cleaning the sensor, but it doesn't look hopeful.
    Maybe it's something translucent on the sensor causing a prism effect, most of which gets directed away from the sensor.
    If it only happens with one lens, maybe it's a defect in a lens.
    Good luck with it!


  • #5
    rubdub
    Registered Users Posts: 76 ✭✭rubdub


    Heebie wrote: »
    Looks like a problem with the image sensor or the connections to it.
    You could try cleaning the sensor, but it doesn't look hopeful.
    Maybe it's something translucent on the sensor causing a prism effect, most of which gets directed away from the sensor.
    If it only happens with one lens, maybe it's a defect in a lens.
    Good luck with it!


    Hmmm... haven't tried it recently with a different lens.. thanks for the idea

    Still not hugely hopeful, but fingers crossed..


  • #6
    Effects
    Registered Users, Registered Users 2 Posts: 9,760 ✭✭✭Effects


    How many actual pixels is it taking up?


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  • #7
    CabanSail
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators Posts: 9,047 CMod ✭✭✭✭CabanSail


    It looks like a block of Red pixels are hot (turned on all the time) It could be a sensor or software fault. An authorised repair centre could analyse it.


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