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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 15 Dec 2018 (Saturday) 15:22
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Canon 5 D Mk Ii problems

 
ducatiwv
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Dec 15, 2018 15:22 |  #1

Friend of mine bought a MKII and is getting 5 or 10 blue tinted pics per 100 pics taken, its a light blue tint that covers the entire image, any suggestions to what might be causing this? Thanks, Larry


Current Equipment list: 5d/30d/24-105 f4/L IS USM / 70-200f4L/ Tamron 17-50mm f/2.8 XR DI II/sigma 10-20/canon 50 1.4

  
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Nogo
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Dec 15, 2018 15:35 |  #2

What is the experience level of your friend?

Your description sounds like someone explaining a white balance problem with not enough knowledge of cameras to describe what is going on. That is why I ask about their experience.

If not simply a lack of understanding white balance, do the simple things first. Try a different memory card and do a factory reset.


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gjl711
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Dec 15, 2018 16:10 |  #3

A sample would help. Blue tint can be something like the WB being off or it could be one of the color channels failing, bad CF card pin, failing card, bad transfer, but without seeing an image, it's hard to guess.


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mdvaden
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Dec 15, 2018 23:05 |  #4

Is that showing up on the back of the camera or on the computer?

I had a RAM memory card compatibility issue on my computer two years ago, and it contaminated some files. But the problem showed up as a bunch of lines across part of the image.


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ducatiwv
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Dec 16, 2018 03:27 |  #5

gjl711 wrote in post #18771482 (external link)
A sample would help. Blue tint can be something like the WB being off or it could be one of the color channels failing, bad CF card pin, failing card, bad transfer, but without seeing an image, it's hard to guess.

Here is a sample , had to crayon out the model lol , not sure if it’s Wb since he uses the same wb on the set and only 5-10 are bad , appreciate the help !


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ducatiwv
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Dec 16, 2018 03:28 |  #6

mdvaden wrote in post #18771651 (external link)
Is that showing up on the back of the camera or on the computer?

I had a RAM memory card compatibility issue on my computer two years ago, and it contaminated some files. But the problem showed up as a bunch of lines across part of the image.

I think both


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gjl711
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Dec 16, 2018 08:54 |  #7

That looks like the WB is set way too low. If shot in RAW, you can pull the WB back to where it needs to be.


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ducatiwv
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Dec 16, 2018 09:48 |  #8

gjl711 wrote in post #18771844 (external link)
That looks like the WB is set way too low. If shot in RAW, you can pull the WB back to where it needs to be.

But it’s same Wb used that gets 90 good images out of 100 , why I don’t think it’s wb but I could be wrong


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john ­ crossley
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Dec 16, 2018 10:41 |  #9

ducatiwv wrote in post #18771748 (external link)
Here is a sample , had to crayon out the model lol , not sure if it’s Wb since he uses the same wb on the set and only 5-10 are bad , appreciate the help !
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Hosted photo: posted by ducatiwv in
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forum: Canon EOS Digital Cameras

Blimey, it looks as if you were “knocking one out” while you were censoring the image of the young lady. That aside, the full exif of the image taken and the type of lighting that you used, sorry, that “Your Friend” used whilst taking the image might help shed some light on the situation.

Better still, just get your friend to register with POTN and then he will be able to communicate directly with the people trying to help him instead of having to correspond via a third party.


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gjl711
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Dec 16, 2018 11:08 |  #10

ducatiwv wrote in post #18771861 (external link)
But it’s same Wb used that gets 90 good images out of 100 , why I don’t think it’s wb but I could be wrong

I can't explain why the WB is off, but the image posted does not look like a missing color channel but missing WB info. I guess the next step is EXIF as mentioned by John above.


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ducatiwv
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Dec 16, 2018 12:04 |  #11

gjl711 wrote in post #18771902 (external link)
I can't explain why the WB is off, but the image posted does not look like a missing color channel but missing WB info. I guess the next step is EXIF as mentioned by John above.

I’m going to have him try another Cf card also just in case but seems like a weird problem to me lol


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Post edited 3 months ago by mdvaden. (2 edits in all)
     
Dec 16, 2018 12:50 |  #12

Is there a chance there are a couple of different continuous light sources in the room, where some variation in the light frequency (flickr) is being caught by the camera part of the time?

Camera processors are so fast, capable of dealing with 1/8000 shutter, etc., it seems the camera could process during and between flicker of different types of light.


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ducatiwv
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Dec 16, 2018 12:52 |  #13

mdvaden wrote in post #18771974 (external link)
Is there a chance there are a couple of different continuous light sources in the room, where some variation in the light frequency is being caught by the camera part of the time?

Unfortunately no :( was all the same lighting and setup


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gjl711
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Dec 16, 2018 19:02 |  #14

mdvaden wrote in post #18771974 (external link)
Is there a chance there are a couple of different continuous light sources in the room, where some variation in the light frequency (flickr) is being caught by the camera part of the time?

Camera processors are so fast, capable of dealing with 1/8000 shutter, etc., it seems the camera could process during and between flicker of different types of light.

The effect you are describing is not affected by the cameras processing speed but is affected by shutter speed. However, when you capture florescent flicker because of a too fast shutter speed, the image is not uniform from edge to edge as this one is. Play around with one of your raw images trying to reproduce the OPs image. Removing a color channel or even two gives a totally different result. Sliding the WB slider down to 2000k reproduces it exactly.


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Colin ­ Glover
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Dec 17, 2018 11:51 |  #15

Could it be the reason the camera was sold to your friend in the first place?


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Canon 5 D Mk Ii problems
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