Canon 5D Mark iii stopped recording video!

[ScottESwartz]

I was shooting on my new Canon 5d Mark iii yesterday, recording to a 16SD card and using a RODE shotgun mic for sound when a weird image appeared on my live view.  Towards the right of the screen these blocks started piling up.  When there were 4 blocks, my video stopped recording!  I'm talking maybe 10 or 15 second videos here.  My SD was less than half full at the time, and when I hit record again I only got about 10 to 15 seconds more of video recording.  What the heck was going on!?  Please help!

I've drawn a picture of what the blocks lookied like to further illustrate my point.  Thank you!

[question]

Same happened with a 128gb UDMA 7 120MB/s CF card. The camera performed well for 5 days and the buffer sign never showed up eventhough we made long clips 15-20mins. And than suddenly it happened. In a moment I couldn't face the camera top and LCD screen proppely, so i couldn't see that it stopped recording. Any suggestions? Anybody found the rest of the not recorded file(s) back via data recovery program? suggestions for a good program?

thanks for your help!

[RobertTheFat]

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@question wrote:

Same happened with a 128gb UDMA 7 120MB/s CF card. The camera performed well for 5 days and the buffer sign never showed up eventhough we made long clips 15-20mins. And than suddenly it happened. In a moment I couldn't face the camera top and LCD screen proppely, so i couldn't see that it stopped recording. Any suggestions? Anybody found the rest of the not recorded file(s) back via data recovery program? suggestions for a good program?

thanks for your help!

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Are you sure you didn't simply hit the 30-minute limit? (I.e., the arbitrary recording limit imposed by the manufacturer so that EU countries won't tax the camera as a video camera.)

[question]

Yes very sure it didn't hit the 30min limit.

[johnnyquest]

if you are recording video to the sd card slot, the canon 5d mark3 will shut off because the the sd slot cannot write video to an sd card fast enough; the sd card slot was never designed to record video or even photos. if you try to record video to the sd card, it will start recording, but when the buffer fills up, the camera will stop recording. even if you have a super fast sd card, the 5D will still stop recording when recording video; Canon did not design the sd card slot to record video (unfortunately). record video to the compact flash card, select the appropriate card slot. class10 udma7 / 800x / 120Mb/s is plenty fast for recording 1080p video on the 5D. 

i used to use the sd card slot for exclusively for photos, as fast sd memory cards are cheaper than compact flash cards. one day i was shooting in high burst mode, the buffer paused all shooting and created a double exposure. after a lot of research, i discovered what i wrote above. noe i only use cf (compact flash) cards.compact flash memory are better and more reliable than sd cards, but more expensive. 64Gb cf cards at udma7 120 Mb/s are now only 50.00, but still only twice that of an sd card. 

i hope this helps. i know how much it sucks to have your camera stop stop working during an important shoot.

[johnnyquest]

this is discouraging. my experience has taught me only recording to sd cards and long takes causes the 5D camera to stop recording or shut off. i have no solution for this, unless it was a bad card? unlikely, but possible. sandisk does make a data recovery program and i have used it to recover photos, but the data needs to be recorded to the card first. i'm not sure if it can recover only brand memory cards. 

[StefFerret]

I'm experiencing the exact same problem but the SD card I'm using is a Lexar 128GB SDXC Class 10, 633x speed 95MB/s and can record 4k video. So what would the problem be with mine? Would it be a faulty camera? It's brand new I literally just bought it 4 weeks ago. Could it be the settings? I really need help on this. Thank you!

[johnnyquest]

your camera is probably fine, just record video to the cf card. record video to the compact flash card slot. change the record to in the yellow menu system. the sd card slot is not fast enough to record video, it does not matter how fast your sd card is, the camera cannot write video data fast enough to the sd card. i talked to canon, they told me the sd card slot was only intended for firmware updates, not to write data such as video or even photos. however, i have used the sd card slot for photos, but am sure to pause between each click to allow the camera to write to the card; when the red light turns off, i take another photo. most of the time i use the compact flash card slot for everything. cf cards are more expensive, but they are more reliable and more shock resistant than sd cards. unfortunately, the new canon 5d mark iv has the same slow sd card slot. after 4 years, i would have expected dual cf card slots plus a writeable sd card slot.

[BillyD]

I have done a low level reformat of the cards from my Sony A7s2 for my new Canon 5d4, but it will not record video for more than a few seconds. The cards are Sandisk Extreme Pro 64GB 280 mb. I have never had issues with the cards shooting full frame 4k in the Sony. In the Canon, I get just a few seconds of recording before it says "recording has stopped" ...Any thoughts?

[Waddizzle]

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@BillyD wrote:

I have done a low level reformat of the cards from my Sony A7s2 for my new Canon 5d4, but it will not record video for more than a few seconds. The cards are Sandisk Extreme Pro 64GB 280 mb. I have never had issues with the cards shooting full frame 4k in the Sony. In the Canon, I get just a few seconds of recording before it says "recording has stopped" ...Any thoughts?

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Yeah.  Try formatting the cards in the Canon.  Why are you using the Sony to format cards for use in the Canon?

[SkyYCCD]

I have been shooting on my 5D III for six years with no problems, using the regular SD card slot. I didn't start having this issue until recently, with BOTH of my Canon cameras! It's hard to tell if it's overheating or the card, and the compact flash cards are so expensive. Could the card type still be the issue, even though I never had problems with this type of card before?