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Thread: How many not pixels in 6 month old camera body = warranty repair?

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  1. #1
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    Quote Originally Posted by conropl View Post
    So... heating up the sensor just melts away the dead pixels
    The way it works is that dead pixels tend to be strongly correlated with Time value (exposure duration) and Temperature. The longer the exposure and the greater the temperature, the more dead pixels there are. Temperature doesn't usually become a factor in until the exposure gets longer than 1/5 second or so. Canon doesn't let you adjust the time value of their dead pixel remapper, but at least you can control the temperature.

    Quote Originally Posted by conropl View Post
    But I do have a question: I realize that long exposures heat up the sensor and can cause damage.
    I don't think it can cause damage. At least, I've never heard of it being a problem. The cold weather does reduce thermal noise ("dark current") though, so it is definitely helpful for those 10 to 50 minute exposures. An alternative method is to just take many short frames and add all the frames together in the computer.

  2. #2
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    Tried it - nope still a white dot in all frames - full size still is is often lost in the clutter for reproducing a "snap shot"... ummm not what I bought a DSLR for.... and Video... oooffff.... big white dot just lower/left of center ummm usually within the subject matter neighborhood.
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  3. #3
    Senior Member conropl's Avatar
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    Quote Originally Posted by Daniel Browning View Post
    An alternative method is to just take many short frames and add all the frames together in the computer.
    I do not have the software to do that yet, but it is my plans.
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