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<blockquote data-quote="TwistedThrottle" data-source="post: 745741" data-attributes="member: 46724"><p>It is true that sensors will heat up if multiple long exposures are shot back to back.&nbsp; People who use a star tracker with with a computer aided auto aligners have the ability to shoot many minutes at a time back to back.&nbsp; Those are the ones who run into burning pixels out, hence the reason for cooled sensors on dedicated astro cameras, (the image is also cleaner when the sensor is cool).&nbsp; Shooting many 30 second shots don't really give a chance for the sensor to become critically hot unless your location is hot at night and then you could space your shots out a bit more or reduce the exposure a bit to allow the sensor time to cool before the next shot is taken.&nbsp; There is also a way to cancel out the hot pixels by taking many dark frames, (the same exposure time at the same focal length at the same temp) with the lens cap on after all your light frames are acquired.&nbsp; Doesn't fix dead pixels, just cancels them out.</p></blockquote><p></p>

[QUOTE="TwistedThrottle, post: 745741, member: 46724"] It is true that sensors will heat up if multiple long exposures are shot back to back. People who use a star tracker with with a computer aided auto aligners have the ability to shoot many minutes at a time back to back. Those are the ones who run into burning pixels out, hence the reason for cooled sensors on dedicated astro cameras, (the image is also cleaner when the sensor is cool). Shooting many 30 second shots don't really give a chance for the sensor to become critically hot unless your location is hot at night and then you could space your shots out a bit more or reduce the exposure a bit to allow the sensor time to cool before the next shot is taken. There is also a way to cancel out the hot pixels by taking many dark frames, (the same exposure time at the same focal length at the same temp) with the lens cap on after all your light frames are acquired. Doesn't fix dead pixels, just cancels them out. [/QUOTE]

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