dead pixels

[stl]

how do u guys test for dead pixels? i heard can be done by using the lens cap and take a black pic and see how many are not black... i got some red, blue and dunno green or white pixels leh...

also how can i count the percentage of dead pixels? i think above a certain percent, the company then can change the cam rite?

 

[jtnet]

Originally posted by stl
how do u guys test for dead pixels? i heard can be done by using the lens cap and take a black pic and see how many are not black... i got some red, blue and dunno green or white pixels leh...

also how can i count the percentage of dead pixels? i think above a certain percent, the company then can change the cam rite?

here's the link:
http://forums.clubsnap.org/showthread.php?s=&threadid=36060&highlight=dead+pixel

 

[West_ray]

does Dead pixel applies to DSLR or Compact, or both ?

 

[jtnet]

Originally posted by West_ray
does Dead pixel applies to DSLR or Compact, or both ?

i belive it's both!

 

[West_ray]

then how to prevet dead pixel from forming ??????

 

[linse]

Originally posted by West_ray
then how to prevet dead pixel from forming ??????

Stop using your camera!

Seriously, it is part of normal wear and tear.

 

[Nutcase]

yeah - talk about wear and tear - I got 1 dead pixel on my 5700 within 3 hours of using it!!!! :angry:

All fingers crossed - hope there is no more to come.

 

[linse]

Originally posted by Nutcase
yeah - talk about wear and tear - I got 1 dead pixel on my 5700 within 3 hours of using it!!!! :angry:

All fingers crossed - hope there is no more to come.

At least it is still under warranty. I got one dead pixel in my CP5000 within 3 months and had the CCD remapped by Nikon. My camera then developed a very hot pixel (ie will appear even in short exposures after continuous shooting) at 15 months. Nikon wanted to charge me S$100 to remapped the CCD out of warranty!!!

 

[E-Lim]

how long will it take for them to fix dead pixel?

 

[Nutcase]

Originally posted by linse
At least it is still under warranty. I got one dead pixel in my CP5000 within 3 months and had the CCD remapped by Nikon. My camera then developed a very hot pixel (ie will appear even in short exposures after continuous shooting) at 15 months. Nikon wanted to charge me S$100 to remapped the CCD out of warranty!!!

So they actually agree to fix 1 dead pixel under warranty?

I had the impression that they will only fix it if > x number of dead pixels.

This is good information! :thumbsup:

 

[linse]

Originally posted by Nutcase
So they actually agree to fix 1 dead pixel under warranty?

I had the impression that they will only fix it if > x number of dead pixels.

This is good information! :thumbsup:

They don't actually replace the CCD. They just remap the CCD so that the defective pixel is not used in the reconstruction algorhythm.