5d mark II issue

[whma11]

Hello, i hope someone can offer some insight this issue. I got frys 1899 5d mark ii deal and received the camera today. I noticed 1 red spot and two white spots on my pics. I did try different lens and the spots still there. Finally, i used dust delete function and two white spots gone. The red one still remain. Not really can see it unless i maximize the pics. Should i ask frys for a replacement or send it back to canon for service. Is this common issue?

[rajismine]

loots like a dead pixel...unusual for such a camera

Ask for a replacement..

[tzalman]

It is a hot pixel, not a dead one; the white pixels are dead and have been mapped out. At what shutter speeds does it appear? Hot pixels at long speeds are common and within tolerance. If you shoot RAW and use LR/ACR it will be automatically mapped out.

[EL_PIC]

Test for more pixel problems and return for replacement.
You will find normal subjects to be hard to do pixel tests.
Use White and then Black subjects like 16 x 20 boards.
Red is Dead and will stand out.
Use normal shutter times and long exposure.

[paulkaye]

Try putting the camera into manual cleaning mode and leave it for a minute or two. This often clears hot pixels.

[rick_reno]

i'd return it, get another.

[whma11]

Thank you for the suggestions how to detect dead and hot pixels. I will try to test it tonight. Just want to clarify which one is dead and hot one? Red one or white one? If i shot it in long exposure, it happens?

[RDKirk]

Thank you for the suggestions how to detect dead and hot pixels. I will try to test it tonight. Just want to clarify which one is dead and hot one? Red one or white one? If i shot it in long exposure, it happens?

A colored pixel is "stuck." What we commonly call a "pixel" is actually an array of three sensels in red, green, and blue. The green and blue sensels are dead, only the red is operating, in your case. So really it's a partially dead pixel.

A white pixel is one in which all the sensels are signalling maximum--it's a "hot" pixel, which is usually caused by overheating. Any pixel can go hot temporarily if the exposure is long enough, and they're to be expected with exposures over 30 seconds or slightly shorter on extremely hot days. They're a problem if they show up with shorter exposures or are always "hot."

There are two ways to deal with it. If you've just bought the camera, you can return it to the dealer...and hope that the replacement doesn't have even more problem pixels.

If there are a lot of them, or if there is a cluster of problem pixels, Canon Service can "map" them out (have them ignored by firmware). This will be done under warranty if they are over a certain threshold. If there are only a few below Canon's threshold, they will map them out at your cost. Photoshop ACR actually does this in software.

[whma11]

A colored pixel is "stuck." What we commonly call a "pixel" is actually an array of three sensels in red, green, and blue. The green and blue sensels are dead, only the red is operating, in your case. So really it's a partially dead pixel.

A white pixel is one in which all the sensels are signalling maximum--it's a "hot" pixel, which is usually caused by overheating. Any pixel can go hot temporarily if the exposure is long enough, and they're to be expected with exposures over 30 seconds or slightly shorter on extremely hot days. They're a problem if they show up with shorter exposures or are always "hot."

There are two ways to deal with it. If you've just bought the camera, you can return it to the dealer...and hope that the replacement doesn't have even more problem pixels.

If there are a lot of them, or if there is a cluster of problem pixels, Canon Service can "map" them out (have them ignored by firmware). This will be done under warranty if they are over a certain threshold. If there are only a few below Canon's threshold, they will map them out at your cost. Photoshop ACR actually does this in software.

Thank you for your help.
I learned something new today. :D
For the pictures, I did not do long exposure. I only took some pictures with my cats. I think F4 and 1/10-100.
I did call Frys.com and the camera has sold out online. They can only suggest me to contact Canon to "fix" it. I want to have a replacement. Since the camera is still online 1899.00 until Friday, I do not think I can have a replacement soon unless Frys has it in stock.
Customer support told me that I have 30 days to replace it. Hopefully, it will have one in stock soon.
At this point, I can only wait and use this camera. Compared to my T1i, I love 5D mark II. It is too good and love it every seconds even it has pixel issues.

[paulkaye]

Where is the dead pixel in the frame? If it's only 1 that's dead and it's away from the centre, then I'd be tempted to live with it. 1 pixed is very unlikely to cause a problem that can't be fixed in post-processing (unless you're doing video). Returning it, waiting 30 days etc etc will be a hassle.

Remember too that there is no guarantee that you won't get a dead pixel on a replacement.

[whma11]

Where is the dead pixel in the frame? If it's only 1 that's dead and it's away from the centre, then I'd be tempted to live with it. 1 pixed is very unlikely to cause a problem that can't be fixed in post-processing (unless you're doing video). Returning it, waiting 30 days etc etc will be a hassle.

Remember too that there is no guarantee that you won't get a dead pixel on a replacement.

If the picture has 5x8 grid, it should be at the 2,6. I mean, the pixels are located on 1/6 down of the top right corner. Not really noticeable, but I know that lol.
There is no guarantee to replacement a perfect one, and I am not sure that Frys will ever receive stock soon enough. I think I can live with that for now.

[laselvasurf]

I would return the camera, not worth something coming back at the wrong time and really creating a problem.

[lannes]

Try putting the camera into manual cleaning mode and leave it for a minute or two. This often clears hot pixels.

+1 I'd try this first, put the body cap on and choose the manual self clean

[whma11]

+1 I'd try this first, put the body cap on and choose the manual self clean

I tried it but not working. I did try to shot it on white and dark background with long exposure. Well, I did find more 4 hot pixels (red and blue) and 5 dead pixel (white). Well, I think I will return whenever frys has it in stock again...
It had been fun and thank you for your advise.