7D mark II corrupt files on SD card

[Tinky]

Those striations remind me of two things, unlikely to be either but here goes:

In the early days of digital cameras the EXIF information could be read by some minilabs as part of the image data and you would get strange corruptions like this. I recall that Canon and Casio were particular culprits, but the problem had ceased by the start of the 2000's.

The other issue was the massive sony CCD failure of the mod 2000's. I owned a couple of cameras that were affected by this, particularly my Minolta Dimage A2. My work at the time had a pool of canon camcorders, MV600's which were to a unit affected by the problem.

The problem was not the chips themselves, but the read off ribbons which could perish in humid climates, causing green and violet casts and strong striations.

This looks to me very much like a hardware issue, I'm afraid to say.

 

[VistechVistech2aol.com]

I have similar corrupted files - Canon 7D Mark2 and sandisk sd cards
All files OK when viewed in camera from both SD and CF cards
Sandisk 16 gb and 32 gb card have many corrupted files when connected to USB2 card reader (tried 2 different inexpensive USB 2 card readers)and viewed in Bridge - Same files are corrupted on each card - even when disconnected and reconnected several times
Sandisk 8 gb card ok when viewed in bridge with both card readers
All images can be transferred to Sanho Colorspace and from there to Bridge without any corruption

Is it possible that cheaper card readers tend to corrupt data on larger SD cards?

 

[Mt Spokane Photography]

Your reader must be compatible with the type of card. I'd stay away from cheap readers, they may not read UHS-1 cards correctly. Bad cables are another source of problems and can be intermittent.

 

[Mediabug]

All,
I have a new EOS 7dMK2 body, less than 3 months old, I have the latest version of firmware loaded.
I purchased new memory sticks, both San Disk Pro Extreme. CF card is 64GB. the SD card is 32 GB. The data is always transferred off the cards via a card reader built in he computer. I am running Windows XP 64 Bit lasts service packs

I have used both card extensively (over 3,000 images) Today however I did a very high number of shots at 20 fps. Most of the images are corrupted. WTF.. It almost seems the DIGIAC data stream is getting corrupted. I have taken this number of images in one day (>2,000) but at a slower rate. Not sure how confirm that the DIGIAC data stream is getting corrupted. Any thoughts.

Seems real sad that the end user if finding this out. Point to a very flawed testing process. I have managed software test groups. This is typical of a product getting "pushed out the door" to hit some point a accountant picked on a calendar

 

[ksgal]

How about writing to both cards? I seem to remember there being an issue with the 5DIII and doing dual writes.. and how fast/slow is the write speed of the cards on each slot?

Some advertise cards as 90mb/s and that is really the read, and the write speed is more like 40mb/s - Just some thoughts.

 

[DoctorT]

I have had the exact same problem of corrupted files upon import via LR5 from Lexar 32gb CF UDMA cards, even though the files are fine in camera (7Dii). I used a Lexar 3.0 card reader as well as importing directly from camera. Lexar has already replaced two cards, and it just happened again. The same strange color banding.
Has anyone found a clear answer?

 

[ntmb1976]

I have the same issue; I replaced the card and I'm getting corrupt images as well
It's a lexar card but my Transend seems to be fine

I've used a lexar and verbatim card reader and I'm still getting corrupt images (same as those posted) from it

There seems to be my rhyme or reason for this at all, the SD is fine but the lexar card is causing issues

 

[FredJ]

I have just had a similar problem I have been shooting withJPG stored to a CF card and CR2 to a 32GB Kingston SD card. When I transferred the CR2 files to my PC using the Adobe Lightroom 6 Import function, 90 files were not recognised. Opening the flies using Free File Viewer showed partial photos with areas of grey in the rest of the frame.
Very disappointing when you have just returned to the UK from a trip to New Zealand.

The JPG files saved to the CF card exhibited the same problem.

 

[willhl]

I just had corrupt and unrecognizable (by lightroom) files show up when using another card. This time on a SanDisk Compact Flash Ultra - 32gb - 50mb/s. I had upgraded the firmware on the camera recently as well. The problem doesn't seem to be specific to the card or the firmware.

 

[RustyTheGeek]

Fake Flash Memory has been a problem for YEARS. Actually DECADES. There are billions of memory chips in the world today and it's very easy to buy low quality chips very cheaply and manufacture crap flash cards or counterfeit high dollar flash cards. Some are so good that they fool major retailers.

Go HERE and FIGHT BACK. https://sosfakeflash.wordpress.com/h2testw/

I TEST all my memory, regardless of who, where or when I buy it. I've even run across bad memory that was totally legitimate. (Hey, nobody's perfect!)

Personally, I tend to stick with the same brands I've used for a long time. Transcend, PixelFast, SanDisk, PNY and Kingston. I got lucky with a couple Komputer Bay CF cards but they are a bit more risky.

Good luck and may the Force be with You! Let us know how it turns out!

 

[RustyTheGeek]

I just had corrupt and unrecognizable (by lightroom) files show up when using another card. This time on a SanDisk Compact Flash Ultra - 32gb - 50mb/s. I had upgraded the firmware on the camera recently as well. The problem doesn't seem to be specific to the card or the firmware.

If you ever have problems with corrupt images after importing them from the card to your computer, my advice is to connect your camera to your computer with USB and transfer them in that fashion. This will tell you if the problem is with the card or what you're plugging the card into (more likely to be what you're plugging the card into.)

The reader used is a GREAT POINT. And believe it or not, as ridiculous as it sounds, I've heard of folks swearing that some readers don't read all of their flash cards the same.

I'll add to that the USB interface and its chipset. Try the reader you are using in another port or even better, another computer. USB 3 chipsets have had a LOT of problems over the years. USB 2, not so much. Try a USB 2 port and see if the problems go away.

FYI - I have had a lot of good luck using this little gem Transcend USB 3 reader since 2014...

http://www.amazon.com/Transcend-Super-Multi-Card-Reader-TS-RDF8K/dp/B0056TYRMW/ref=sr_1_2?ie=UTF8&qid=1460511268&sr=8-2&keywords=transcend+reader

 

[wvr1970]

I've also problems with corrupted RAW-images.
Sometimes (rarely) it appears.
The only CF card (which I used most) which giving troubles is the Lexar 32GB 800x UDMA7.
I have replaced it by a new one (garanty) but the problems still remain. Recently my camera was send back for repair, but the problems will still remain, even with a new mainboard.

I've tried al solutions mentioned above, but none helps.

My opinion is that this specific Lexar card won't work correct with the 7D mkII.
Just my two cents...

Wouter

 

[RGF]

We had problems with cards a while ago.

Card was good at first but got corrupted when we read it several times

In the end our best guess the problem was with the USB cable. Once replaced that, all was good again.

 

[Macoose]

I've also problems with corrupted RAW-images.
Sometimes (rarely) it appears.
The only CF card (which I used most) which giving troubles is the Lexar 32GB 800x UDMA7.
I have replaced it by a new one (garanty) but the problems still remain. Recently my camera was send back for repair, but the problems will still remain, even with a new mainboard.

I've tried al solutions mentioned above, but none helps.

My opinion is that this specific Lexar card won't work correct with the 7D mkII.
Just my two cents...

Wouter

My Lexar 64gb 800x has had two corrupt raw files since I bought it. But that is 2 out of about 20,000 clicks so I'm really not complaining. I don't think it's worth replacing the card because of two files.

I almost forgot to add. The two files looked exactly like the one posted.


Macoose