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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 19 May 2009 (Tuesday) 01:51
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Stuck / Dead Pixels on your sensor (5D Mk II) what should I do?

 
sf_loft
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May 19, 2009 01:51 |  #1

I posted this as a reply to another thread, but I figure I start a new one to get people's opinion.
--
My camera had a stuck green pixel at the same spot on all my photos. It was hard to find and not visible unless you 100% crop and really look for it. Went online and read about a fix using the camera's built-in manual cleaning technique that fixes this. It worked, stuck pixel gone from stills, but if you do video mode, the stuck pixel is still there but white. You have to go to 10x zoom in video to actually see this. Not sure what to do since I don't really use the video and everything is totally fine with the camera. Even if I did use the video, you can't really see it unless you pixel peep. I read online about people returning their cameras with 1-2 stuck pixels and getting 7 on the replacement. You may have stuck / dead pixels and not even know it. Supposedly Canon allows for .001% of bad pixels go through their quality control. Since everything about the camera is perfect, I will continue to use it and send it in for warranty service before the 1 year mark for cleaning and the stuck sensor pixel issue. What do you guys think? I'm still within the 30 day return period. Should I exchange it and risk seeing more, or keep it and send it in for warranty work at month 11?

Attaching a sample image at 100% crop to show what it looks like. You can see the dot. It appears green on my screen in Aperture. The recommended sensor remapping using the manual cleaning mode works and it no longer appears in my pics.


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Canon EOS 5D Mark III & FUJIFILM X-T1 mirrorless

35mm f/1.4L | 85mm f/1.2L II |135mm f/2L | 16-35mm f/2.8L II | 24-70mm f/2.8L II | 70-200 f/4L IS | 100mm f/2.8L IS Macro
Benro C2691T Travel Angel | GP-E2 GPS | EF 1.4x III
FUJINON 23mm 1.4 | FUJINON 35mm 1.4 | FUJINON 56mm 1.2

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cheehoo
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May 19, 2009 02:20 |  #2

I had the same issue and the self fix did not work. I sent it in and after one week got it back with a new sensor. The pixel popped on me about 2 months after I bought it but the standard warranty covered. They were extremely fast sending it back!
edit: forgot to mention on photos it wasn't that big of an issue but EXTREMELY apparent in video.


5Dii, 85Lii, 580exii - waiting on a 24Lii

  
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sf_loft
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May 19, 2009 02:37 |  #3

cheehoo wrote in post #7948376 (external link)
I had the same issue and the self fix did not work. I sent it in and after one week got it back with a new sensor. The pixel popped on me about 2 months after I bought it but the standard warranty covered. They were extremely fast sending it back!
edit: forgot to mention on photos it wasn't that big of an issue but EXTREMELY apparent in video.

What color was your stuck / dead pixel? If it was black then it's dead and the self fix will not work. If it's a color, then it's probably stuck. I haven't played back any video through my 46" HDTV, will that 1 stuck (white) pixel show on the screen?


Canon EOS 5D Mark III & FUJIFILM X-T1 mirrorless

35mm f/1.4L | 85mm f/1.2L II |135mm f/2L | 16-35mm f/2.8L II | 24-70mm f/2.8L II | 70-200 f/4L IS | 100mm f/2.8L IS Macro
Benro C2691T Travel Angel | GP-E2 GPS | EF 1.4x III
FUJINON 23mm 1.4 | FUJINON 35mm 1.4 | FUJINON 56mm 1.2

flickr (external link)

  
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Stealthy ­ Ninja
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May 19, 2009 02:41 |  #4
bannedPermanent ban

My friend had the same problem (he bought his 5Dmkii the day after I got mine.

I didn't.

He took his back and got another one.

Now, he has no problems.

I sure like to space out my posts.

Don't I?!




  
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cheehoo
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May 19, 2009 02:47 |  #5

it's a white/green pixel, and was extremely obvious in my video playback on my computer.


5Dii, 85Lii, 580exii - waiting on a 24Lii

  
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Stealthy ­ Ninja
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May 19, 2009 02:50 |  #6
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YEah, these things become quite obvious on video. How many times have you seen a TV show and they have one little mark on the lens, but when the shot moves, you see a UFO flying across the sky (so to speak).




  
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sf_loft
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May 19, 2009 02:58 |  #7

cheehoo wrote in post #7948458 (external link)
it's a white/green pixel, and was extremely obvious in my video playback on my computer.

Hmm interesting. I was trying really hard looking for it during video playback and had to pause and zoom in 10x to really see it. Perhaps the severity of the dead pixel on yours was more severe in that you had a group of them stuck or go out.

I think that some people have it and simply don't notice. Most people notice it in video mode, even if the self-fix worked in still mode. The 5D mk II is back-ordered so returning it may suck since I have to wait sometime. Since the self fix worked for me, I should probably just use the warranty to get it straighten out after I put it to good use.


Canon EOS 5D Mark III & FUJIFILM X-T1 mirrorless

35mm f/1.4L | 85mm f/1.2L II |135mm f/2L | 16-35mm f/2.8L II | 24-70mm f/2.8L II | 70-200 f/4L IS | 100mm f/2.8L IS Macro
Benro C2691T Travel Angel | GP-E2 GPS | EF 1.4x III
FUJINON 23mm 1.4 | FUJINON 35mm 1.4 | FUJINON 56mm 1.2

flickr (external link)

  
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Stuck / Dead Pixels on your sensor (5D Mk II) what should I do?
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