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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras
Thread started 10 Sep 2017 (Sunday) 10:08
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HeleneD
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Sep 10, 2017 10:08 |  #1

This happened for the first time last night at a wedding. I thought it was the card so I changed it. Only a few frames were like this. This morning, I had a shoot. Different cards and 2 frames were like this. Anyone know what is causing it? I am using a 5D3.

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scriveyn
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Post has been edited 1 month ago by scriveyn.
Sep 10, 2017 10:16 |  #2

Is it a RAW file?

I had a few similar RAW files with some quadrants being all magenta. When I downloaded them through a different card reader they were ok.


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HeleneD
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Sep 10, 2017 10:19 as a reply to scriveyn's post |  #3

yes it's a RAW file. Any idea why it's happening? Processor maybe? It recorded this way to both cards I was shooting on.


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gjl711
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Sep 10, 2017 10:24 |  #4

It's a corrupted file. It can be a bad card, bad transfer, bad drivers, bad camera. As this is happening on different cards you might start the debugging process looking at the transfer. Check readers, cables, drivers and such.

Also, is just the embedded jpeg smashed or is the raw file itself smashed? Open it in arc or whatever you are using for raw conversions and take a look at the image.


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Canon ­ Amateur
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Sep 10, 2017 15:49 |  #5

I once had a simmilar issue when I used an el-cheapo cardreader.
Now I use a USB 3 cardreader from a well known brand and never had this issue.
In my case it was the low quality cardreader.


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HeleneD
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Sep 10, 2017 16:53 as a reply to Canon Amateur's post |  #6

It shows while in the camera too so I dont think it's a card reader issue.


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gjl711
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Sep 10, 2017 16:58 |  #7

HeleneD wrote in post #18448838 (external link)
It shows while in the camera too so I dont think it's a card reader issue.

If it shows in the camera it means that the embedded jpeg in the raw file is smashed. It might be good news as the raw file itself could possible be ok. As this happened to two cards, it could be card or camera. Per chance, are the cards Lexar? I have 2 cameras that have always had issues with Lexar cards doing the same thing you are seeing.


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HeleneD
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Sep 10, 2017 17:31 |  #8

gjl711 wrote in post #18448844 (external link)
If it shows in the camera it means that the embedded jpeg in the raw file is smashed. It might be good news as the raw file itself could possible be ok. As this happened to two cards, it could be card or camera. Per chance, are the cards Lexar? I have 2 cameras that have always had issues with Lexar cards doing the same thing you are seeing.

They are transcend cards. I'm just glad it's only a few images


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MakisM1
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Sep 11, 2017 16:44 |  #9

Does it happen with both cards? Try to have an SD and a CF card and see whether they both get the same problem. If it happens to both, then it is a camera problem. If it happens to one, say the SD, try debugging the SD side (different brand cards, different reader, use the camera USB connection).

Let us know what happened.


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