topic Eos 7d Mk1 Mirror Freezes in Photo Mode in EOS DSLR & Mirrorless Cameras

Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 16:11:14 GMT

I have had my Eos 7d Mk1 for a while now and recently had a problem. In photo mode when using the eyepiece the mirror freezes when taking a photo after the first or second shot, I can take photos fine in video mode or when I'm using the screen to preview my shot, I've tested my two lenses, Ultrasonic 50mm and Ultrasonic 28-135mm and it freezes with both, I've formated the card and reset settings, don't have a battery grip, and shoot primarily manual, although this seems to effect all modes. I know the camera is getting old and has been used 2-3+ times a week for over two years now. If there is anything else that would help I'll do what I can, thanks!

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

MikeSowsun — Sat, 24 Nov 2018 18:10:00 GMT

Does it show an error message when this happens?

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 18:12:06 GMT

It only says error on the top screen near the shutter button, nothing on the screen as it isn't on when I'm taking the photo, through the eyepiece it just goes black, including the displays

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 18:17:46 GMT

only says error on the top screen near the shutter button, nothing on the screen as it isn't on when I'm taking the photo, through the eyepiece it just goes black, including the displays

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

MikeSowsun — Sat, 24 Nov 2018 18:31:39 GMT

Is there a number shown along with the “Err” message on the top LCD screen?

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 18:23:29 GMT

no it just says error

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

MikeSowsun — Sat, 24 Nov 2018 18:33:37 GMT

That does seem odd as I thought there should always be a code associated with any error message.

I guess you will need to take it to a Canon Service Center.

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

John_ — Sat, 24 Nov 2018 22:44:12 GMT

Found some info on error 30 and 80 and all it says is to turn the camera off remove the battery, replace the battery and turn it on...which my guess is you've already done. I would only add to turn the camera on for 30 seconds with the battery removed and with fingers crossed.

Err 30

Description: A malfunction with the shutter has been detected.

Resolution: Turn the power off, then remove and re-install the battery. Then turn the power on again.

Err 80

Description: A malfunction with the electric control or images has been detected.

Resolution: Turn the power off, then remove and re-install the battery. Then turn the power on again.

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

John_ — Sat, 24 Nov 2018 22:55:36 GMT

Just found some other people with those errors that solved it by blowing out the camera with compressed air, including the battery and SD card compartments

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

MikeSowsun — Sat, 24 Nov 2018 23:01:53 GMT

Sorry to mislead you, but the error codes were just examples I found with a Google search. The original poster just has the "Err" message and no codes.

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 23:22:15 GMT

I have already done this with both of my batteries, and cleaned the contacts on both of them and in the compartment, as well as replacing the clock battery, no difference unfortunately

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 23:24:59 GMT

I finally got an error code: 40, I don't know if I didn't notice I previously or if it just started showing up

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 23:26:28 GMT

I did finally get an error code: 40. Took several times of "crashing it" the before it showed up, although I may have missed it I don't know

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

John_ — Sat, 24 Nov 2018 23:35:48 GMT

ah ok!

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sat, 24 Nov 2018 23:39:50 GMT

I have tried a few settings changes but nothing has worked, I went out this afternoon and shot with it using the screen, no problems, didn't even want to attempt the eyepiece just in case

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

Waddizzle — Sun, 25 Nov 2018 14:58:15 GMT

@SwiftSword wrote:
I finally got an error code: 40, I don't know if I didn't notice I previously or if it just started showing up

Error Code 40 is a power malfunction has been detected. Are you using genuine Canon batteries?

Have you tried to power up the camera without a memory card? Without a lens? Without either?

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

wq9nsc — Sun, 25 Nov 2018 18:26:28 GMT

Err 40 is a fairly generic "power issue" that can be set by many different failures and problems.

Flipping the mirror in a DSLR is a fairly significant peak power drain task so a problem with the battery or the contact interface between the battery and the camera can easily be an issue causing this error to occur when a sudden increase in battery current is demanded causing system voltage to drop below the critical level.

I haven't used a 7D series but do you have an AC adapter for it and how does it connect? If possible try the AC adapter to narrow down the issue. The aperture is also being changed at the moment the image is taken so try setting it up in Av or manual mode with the selected lens aperture set to the maximum opening of the lens (which is used during setup/focusing).

If replacing the battery or cleaning the contacts doesn't do it then you are going to have to send it in for repair. It is possible that the mechanism used to flip the mirror out of the image path is defective causing it to draw excessive current but more likely there is an issue either with the power bus or power bus sensing circuit on the main board.

Rodger

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sun, 25 Nov 2018 19:01:14 GMT

I am using genuine Canon batteries-I have tested the both of them and it doesn't seem to have made a difference. The camera will turn on and works fine so long as I am not shooting photos with the eyepiece, I don't seem to have any problems without a lense but of the 6 now that I have tried all of them cause an error. As for cards I have tried 3 separate ones and tried without to no avail.

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

John_ — Sun, 25 Nov 2018 19:06:14 GMT

Have you cleaned the contacts on the camera body where the lens mounts with an eraser?

Re: Eos 7d Mk1 Mirror Freezes in Photo Mode

SwiftSword — Sun, 25 Nov 2018 19:10:12 GMT

I do not have an AC power adapter, but have cleaned the contacts for everything, flash, lense, battery etc. opening my aperture completely doesn't seem to have made a difference, although I managed to take more than one for once before it gave me an error