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<blockquote data-quote="BackdoorArts" data-source="post: 236963" data-attributes="member: 9240">While I can't see specifically what you're speaking of, you have made an image where the shutter was activated for more than 51 minutes.&nbsp; If you read your manual you will see that after a certain period of time (far less than that) an active sensor can build up enough heat that you will get hot pixels and sensor noise.&nbsp; Nikon has installed hard stops on video features at 20-25 minutes to protect sensors from potential damage.&nbsp; Your shot is more than twice that length.I'm not saying you damaged your sensor, but I am saying that you exposed it to potential damage from overheating.&nbsp; What you see is likely noise from an overheated sensor.There are many tutorials on shooting things like star trails, which is what I'm assuming you were going for, all of which involve the merging of multiple shorter exposures at higher ISO and wider aperture.&nbsp; That's probably the way to go.</blockquote>

[QUOTE="BackdoorArts, post: 236963, member: 9240"] While I can't see specifically what you're speaking of, you have made an image where the shutter was activated for more than 51 minutes. If you read your manual you will see that after a certain period of time (far less than that) an active sensor can build up enough heat that you will get hot pixels and sensor noise. Nikon has installed hard stops on video features at 20-25 minutes to protect sensors from potential damage. Your shot is more than twice that length. I'm not saying you damaged your sensor, but I am saying that you exposed it to potential damage from overheating. What you see is likely noise from an overheated sensor. There are many tutorials on shooting things like star trails, which is what I'm assuming you were going for, all of which involve the merging of multiple shorter exposures at higher ISO and wider aperture. That's probably the way to go. [/QUOTE]

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