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by Alexandre Vaz on Mon Mar 15, 2010 5:52 pm
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Alexandre Vaz
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Hi all!

I just got myself a new 5DII a couple days ago.
I just realized it has an hot pixel in top right corner. Is this normal/acceptable? Is there an easy way to map it out?
Image

The hot pixel is visible against dark backgrounds not only at high, but also at ISO 100.

Thanks in advance

alex.

by E.J. Peiker on Mon Mar 15, 2010 6:48 pm
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Canon has in the past always built in a hot pixel remedy:

With a fresh battery, put the body cap on the camera, put the camera in manual sensor cleaning mode, leave it in that mode for 60 seconds, shut off the camera.

by Tsmith on Mon Mar 15, 2010 10:43 pm
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So what was your outcome Alex?
- Toney

by Alexandre Vaz on Tue Mar 16, 2010 3:46 am
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:D I knew I could find the answer here. Thanks E.J.

I wonder how does the camera know what to do. Does it by default after manual sensor cleaning scan the image for high contrast dots?

Also, is this written somewhere on the manual or is just of those things that smart people know?

by E.J. Peiker on Tue Mar 16, 2010 10:54 am
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This is not a documented feature but it's something Canon has built into their cameras since I think the 10D.

by fredcor on Tue Mar 16, 2010 1:44 pm
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I did not know that and neither did the dealer, thus I got a replacement for my 1st 7D!
Frederick Lat Correa

by Alexandre Vaz on Thu Mar 18, 2010 8:35 am
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Lat Correa wrote:
I did not know that and neither did the dealer, thus I got a replacement for my 1st 7D!


That was the first think I thought about, but then I remembered someone discussing this before, and I knew where I would find the answer (here). 8)

I guess now I will have to live with one pixel less, but in 21 000 000 that's not a big deal. :twisted:

by dbostedo on Thu Mar 18, 2010 9:54 am
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Now why the heck would Canon not want this to be common knowledge? Do they just not want to bring up stuck pixels and have someone ask why they exist in the first place?
David Bostedo
Vienna, VA, USA

by E.J. Peiker on Thu Mar 18, 2010 9:57 am
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I doubt that it's anything sinister. I think engineering just built that function in and didn't tell the manual writers and marketing.

by Joe Elliott on Thu Mar 18, 2010 2:44 pm
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dbostedo wrote:
Now why the heck would Canon not want this to be common knowledge? Do they just not want to bring up stuck pixels and have someone ask why they exist in the first place?


Maybe, lots of money for quick, simple, easy repairs, from many unknowing consumers ???

by dbostedo on Fri Mar 19, 2010 10:48 am
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E.J. Peiker wrote:
I doubt that it's anything sinister. I think engineering just built that function in and didn't tell the manual writers and marketing.

And haven't told them since the 10D? I tend to think there's some reason that they don't want people to know about this "officially". I also don't think it's anything sinister (like trying to force people to send it in for repair) - I'm just curious.
David Bostedo
Vienna, VA, USA

by E.J. Peiker on Fri Mar 19, 2010 10:52 am
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Just trying to take the high road :):):)

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