multiple hot pixels on a G1 -- out of nowhere!

al606 · 2nd of July 2004 (Fri)

I was shooting the evening sky in New Zealand with my trusty old G1, and *all of a sudden* it developed 4 or 5 hot pixels, literally not there on one shot but on every subsequent shot afterwards.

I know they can be blotted out using various techniques, that isn't what perplexes me.

Any ideas on how or why they would spontaneously appear?

John_T · 2nd of July 2004 (Fri)

Was the camera warm/hot? Heat can cause considerable image noise, maybe hot pixels.

If you now take a shot with a cool camera and the lens cap on, do you still get the same hot pixels?

catastrophe · 4th of July 2004 (Sun)

the same happened to me and it now seems that they are permanent. i have a total of 6 of them. they vary in intensity and even color depending on the shot, but they are always there. is there any software that can help batch fix my pictures so i don't have to do it manually? or is there something i can do with my camera to minimize them or make them dissappear forever? please let me know, thanks!

meow · 4th of July 2004 (Sun)

Don't know about that but there's this tool that's supposed to work well.
http://www.tawbaware.com/pixelzap.htm
There ought to be others too.

catastrophe · 4th of July 2004 (Sun)

Quote:

Originally Posted by meow

...there's this tool that's supposed to work well.
http://www.tawbaware.com/pixelzap.htm
There ought to be others too.

Thanks... I will give that a look.

2nd of July 2004 (Fri)	#1
al606 Member Join Date: Jan 2003 Location: Prestbury, UK Posts: 83	multiple hot pixels on a G1 -- out of nowhere! I was shooting the evening sky in New Zealand with my trusty old G1, and all of a sudden it developed 4 or 5 hot pixels, literally not there on one shot but on every subsequent shot afterwards. I know they can be blotted out using various techniques, that isn't what perplexes me. Any ideas on how or why they would spontaneously appear?

2nd of July 2004 (Fri)	#2
John_T Goldmember Join Date: Jun 2003 Location: Switzerland Posts: 2,636	Was the camera warm/hot? Heat can cause considerable image noise, maybe hot pixels. If you now take a shot with a cool camera and the lens cap on, do you still get the same hot pixels? __________________ Canon : 5DIII : 7D : 40 2.8 : 50 1.4 : 35L : 85L : 100L IS Macro : 135L : 16-35L II : 24-105L IS : 70-200L II : 100-400L IS : 1.4x & 2x TC II : 580EX : 430EX : Markins Q10 & Q3T : Jobu Gimbal : Manfrotto Underware : etc...

4th of July 2004 (Sun)	#3
catastrophe Member Join Date: Jun 2004 Posts: 42	how to get rid of hot pixels the same happened to me and it now seems that they are permanent. i have a total of 6 of them. they vary in intensity and even color depending on the shot, but they are always there. is there any software that can help batch fix my pictures so i don't have to do it manually? or is there something i can do with my camera to minimize them or make them dissappear forever? please let me know, thanks!

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4th of July 2004 (Sun)	#4
meow Member Join Date: Jul 2003 Posts: 330	Don't know about that but there's this tool that's supposed to work well. http://www.tawbaware.com/pixelzap.htm There ought to be others too.