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Thread: I think I have hot pixels on my K10D

  1. #1

    Default I think I have hot pixels on my K10D

    I have been shooting portraits during parties and dinner. Recently I noticed something with some of the photos:



    Is this a hot pixel? Can this be fixed? I did some test. If its high ISO(>800) it sometimes appear.
    Last edited by alanpotpot; 6th January 2008 at 07:36 PM.

  2. #2

    Default Re: I think I have hot pixels on my K10D

    have something like that too.. two spots in fact.. only appears with long exposures and yes, high iso

    but it usually disappears if i shoot in raw and output jpg

  3. #3
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    Default Re: I think I have hot pixels on my K10D

    My K10D have it too. It's hot pixel.
    This can fix by sensor mapping (not means it will be OK, just map off only).
    night86mare & yours will disappears, thats lucky, mine always ON, even @ low ISO.

  4. #4
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    Default Re: I think I have hot pixels on my K10D

    It looks like hot pixels which sometimes will appear with high iso and long exposures. If you send to the service center they will fix it by mapping the hot pixel out.

    Can you send a bigger pic. I think i saw another problem with your CCD.

  5. #5

    Default Re: I think I have hot pixels on my K10D

    @istdes

    Here is another pic exhibiting the problem. In the K10D jpeg its not there.

    Output from ufraw(+1 exp)
    http://urltea.com/2hau

    K10D(jpeg)
    http://urltea.com/2hat

    The hot pixel is in the hair. Its bluish in color.
    Last edited by alanpotpot; 7th January 2008 at 12:13 AM.

  6. #6

    Default Re: I think I have hot pixels on my K10D

    Our K10D got 10mp- 10 million pixels. If you got 1 or 2 hot pixels, you won't notice them easily even you view the pic at 100% size.

    Don't worry, just keep shooting, and looking at the overall photo, not the tiny tiny pixel dots

    Cheers and happy shooting!

  7. #7
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    Default Re: I think I have hot pixels on my K10D

    My K10D sometimes shows hot pixels at high iso as well. At other times, the hot pixels don't show up when I pixel peep for them.
    I remember coming across a Canon Forum where a member had hot pixels.
    His solution was to remove the camera battery for 2 days. After the battery was reinserted, voila the hot pixels disappeared.

  8. #8
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    Default Re: I think I have hot pixels on my K10D

    Other than the hot pixel, nobody noticed some funny wire pattern on his cropped photo. I was thinking is that the same problem longko had previously.

  9. #9

    Default Re: I think I have hot pixels on my K10D

    Quote Originally Posted by istDeS View Post
    Other than the hot pixel, nobody noticed some funny wire pattern on his cropped photo. I was thinking is that the same problem longko had previously.
    yes. notice that from the first photo posted. the noise seems to have some sort of "pattern" instead of random noise due to high ISO. thread starter might want to do more testing to see if its really a problem.

  10. #10

    Default Re: I think I have hot pixels on my K10D

    I looked at the K10D photo and its ok. The cropped photo is exposed +1 stop. Before converting I made it +0 then converted and its gone.

    A little bit OT. Was Longko able to fix his problem?

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