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Thread: Are this Noise or Dead Pixel?

  1. #1

    Default Are this Noise or Dead Pixel?

    Saw a few night shot with 2 white dots. Therefore decided to leave the lens cap on and take a few picture and notice a few dots at Shutter speed of 1 sec




    8 Sec




    16 Sec (at this level should be noise right?




    all taken with ISO 100. Does this means that my cCD is dying?

  2. #2

    Default

    Sorry for the huge file and picture attachment. If u have 17" CRT not that hard to scoll. 15" user I am sorry

  3. #3

    Default

    Quote Originally Posted by apex
    Sorry for the huge file and picture attachment. If u have 17" CRT not that hard to scoll. 15" user I am sorry
    I think it's noise.

    On the other hand, are you sure you are not taking pictures of stars?

  4. #4

    Default

    Quote Originally Posted by Hoky
    I think it's noise.

    On the other hand, are you sure you are not taking pictures of stars?

    Nope... Len Cap is on lay. How could stars appear. Lolz... But at normal shutter speed i still got 2 white pixel.

  5. #5

    Default

    Those are hot pixels.
    They're neither dead, nor noise.
    The longer the shutter speed, the more will appear.
    The number of hot pixels on your cam looks normal.

  6. #6
    Member
    Join Date
    Feb 2003
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    Punggol 21
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    389

    Default

    Try taking 2 for each shutter speed.

    If the 'stars' appear in same spots, then it's the pixels.

  7. #7

    Default

    Quote Originally Posted by HeWolf
    Try taking 2 for each shutter speed.

    If the 'stars' appear in same spots, then it's the pixels.

    Yah every picture taken always have the 2 dot appear at the same spot.

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