EOS R5 Err 70

[MBP]

I just received a new EOS R5 and out of the box I was getting an err 70 lockup. I thought updating the firmware would resolve the problem but the err 70 continues. I have now received a message 20 or 25 times over the course of 100 frames. Is the a comen problem?

[ChristianPasser]

I also have the same problem. Bought the R5 recently, immediately installed the latest firmware (1.6.0), and went in the field. First pictures, first time Err 70. This happened randomly over several days, with no apparent pattern, with different EF lenses with 2 different adapters, as well as with RF lenses. I use the fastest SD and CFexpress Type B cards. 

Today I decided to downgrade to firmware 1.5.1 and reinstall 1.5.2 first, and 1.6.0 last. The problem appeared with both the latter firmwares. So I downgraded back to 1.5.1, and the problem seems (I repeat, seems) to be solved. Which is quite bad since I would like to use the latest firmware which had solved the overheating issues in video mode. I hope Canon will release soon a new firmware which solves all the problems. 

[ishTAKESphotos]

Also on the same boat as you all! Tried everything, and still get the error 70 ON A NEW BODY! my trusty 5D iv never looked more attractive. I wonder if we're the only ones who deal with this? Or maybe all the YouTube photographers or well known photographers just don't mention it. who knows.

I'll be sending over my camera soon to them, lets hope they fix this! this is totally unacceptable. if someone tells me if I tried taking out the battery and replacing it, I will absolutely lose it lol.

[garymak]

I'm getting this, too. It seems to happen more frequently when using an 430EX RT III flash. I used a 5D MKIII for years and NEVER had any kind of problem. It just ran flawlessly. This R5 seems to be very wonky. I only use Canon lenses and on this just RF lenses, so this should also work flawlessly in my book. I've had issues running a 24-105 ƒ4L and a 24-240.

I also get errors - not error codes - but errors when using the flash on AV mode. The SS is preset to 1/250, so it should just adjust the ISO, but it often doesn't and the images come out too dark.

Anyway, just reporting this here to say "my R5 is wonky, too!" 😖

[garymak]

Can we get an "AMEN!" on that?!?!

[dliebowitz]

I encountered this infuriating problem straight out of the box, brand new R5. I s/w B&H where I purchased the R5. They told me to bring it in and they exchanged it immediately for another brand new R5. No questions asked. I have never encountered the Err 70 error message again with the new replacement R5. I would run, not walk back to your vendor and request a return or trade for identical new R5. This is a known issue. btw... with the Err 70 behind me, I absolutely love the R5, I cannot say enough good things about this camera. I love it.

[garymak]

You've provided an important "clue" to this forensic analysis (that Canon seems not to be doing) regarding "seems to occur when the camera needs to control the aperture." This seems to be what's happened in my experience, coupled with using a flash 430 EXIII RT... Anyway, thanks. It'll help me be on the lookout next time it happens.

[Insight32]

Shooting timelapse I can make any R5 fail with an error 70 using a lens stopped down from wide open. It sometimes takes 180 shots. other time 300 shots but it will fail randomly. It will fail shooting regular stills as well but since it can take hundreds of shots to fail many people may rarely ever get the message

[billbylund]

I sent this in to Canon for the Error 70, they replaced the main circuit board, still get the error every 50 frames or so, annoying!

[NattyA]

Hi there. I am also experiencing the dreaded ERR 70 on my Canon R5 just purchased at Christmas with an adaptor. Whenever the error occurs I lose all the photos that I’ve previously taken. This occurred at a wedding I was shooting last week where the error happened right after the bride and grooms entrance and I lost all the photos of their entrance as a result! I have another wedding to shoot this weekend and I’m terrified to use this camera!! 

I’ve been back to CameraHouse where I purchased it 4 times now to try to rectify the issue to no avail. First they told me it could be the memory card so I dropped $400 on a new card. Then they said it could be the firmware so I updated the firmware and same issue. I’m hesitant to go and fork out more $$$ for an RF lens as reading here, this doesn’t always fix the issue. 

I also have multiple shoots a week and can’t find a free block of time to send the thing off. 

feeling super frustrated that this very expensive camera has given me nothing but issues. 

[shadowsports]

Greetings ,

This thread is over a year old. Please start a new thread and tell us about your hardware. The adapter you're using brand / model and the lenses you are experiencing this issue with.