Sensor Noise (green dots) on Low Light, Long Exposure Photos

[joenami]

Okay, so this isn't video related... but still rather frustrating. If you look in the darkened area of this photo, there are green dots everywhere. Anyone else seeing this?
http://web.me.com/joe.walsh/greendots.jpg

[paulgandersman]

i had these dots pop up before but not in the raw image... it was very strange. i edited the rw2 file in photoshop and never saw these dots, then upon exporting they appear, and I can't get them to go away no matter what during export!


http://bleutuna.com/paulgandersman/wp-content/gallery/mms_live_at_stubbs/p1010362.jpg

http://bleutuna.com/paulgandersman/wp-content/gallery/mms_live_at_stubbs/p1010306.jpg

:huh:

[yslee]

Hot sensor leading to hot-pixels. Shut it off, let it cool down. Turn on dark frame subtraction for long exposures.

[Ben_B]

yeah I've seen that on long exposures.