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Argh! Dead pixels? Canon A70.

Joined
Sep 16, 2002
Messages
634
Last weekend I was doing some shooting, and noticed a red dot on the preview LCD on my Canon A70. I was hoping it was just a stuck pixel on the LCD, but it seems to show up in photos too.
Deadpixel.jpg


This is a crop from a full resolution ultra-fine photo of a black background with no flash. The red pixel and the blue one appear to be "stuck".

Anyone else ever seen this on a digital camera, and if so, did you do anything to fix it. Should I worry about it?
 
Take the camera into a dark closet, put the lens cap on and take a very long picture 30 seconds or so. Then take a look at what comes up in the photo. Shoot at the lowest ISO btw
 
99% of all cameras have dead or hot pixles... my 10D has like 2 or three... you usually only notice it when you take pics of completele black tho...

if they are impacting your pics you might try taking it back to where you bought it
 
Originally posted by [TQ]
Take the camera into a dark closet, put the lens cap on and take a very long picture 30 seconds or so. Then take a look at what comes up in the photo. Shoot at the lowest ISO btw

There's no lens cap with Canon's P-n-S cams.

The 2/3" CCD sensor is so small, and has so much noise, it's too difficult to differentiate between. It's not like D-SLR. As well, neither is the cleaning process. Basically, one of three things:

- Deal with the hot/dead pixels.
- See if an 'authorized' Canon dealer will disassemble and clean it.
- RMA it
 
Originally posted by FLECOM
99% of all cameras have dead or hot pixles... my 10D has like 2 or three... you usually only notice it when you take pics of completele black tho...

if they are impacting your pics you might try taking it back to where you bought it

i agree. a couple if dead pixels in all likelyhood won't affect your images. Unless of course, you like taking pictures of complete black. In which case a couple of seconds with your favorite touch-up tool should take care of it :)
 
Since hot/dead pixels are always in the same place..

Go into photoshop and make a mask for all of your photos.

The dead-pixels will be assigned a value that is the average of the 8 pixels that surround the dead-pixel.

I have it set up for each of my cameras.

-PD
 
Originally posted by PurdueDood
Since hot/dead pixels are always in the same place..

Go into photoshop and make a mask for all of your photos.

The dead-pixels will be assigned a value that is the average of the 8 pixels that surround the dead-pixel.

I have it set up for each of my cameras.

-PD
How do you make a mask like the one you talk about in PS?
 
Im sending my camera in tommorrow. I have a buncha dead pixels. My nikons past its 1 year warranty but i bought a MACK 5 year warranty for it. If they can't fix it, they'll replace the camera according to their information.
 
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