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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 06 Jan 2014 (Monday) 21:08
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Weird noise coming from 5D2 last night

 
TheAnt
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Jan 06, 2014 21:08 |  #1

Yesterday, I was at a 10 hour shoot and experienced a weird issue pop up a few times throughout the day.

As a preface, I was shooting a 5D2 with both a Sig 50 and Canon 85 1.8. Body had a CyberSync transmitter attached. Also, using a non-OEM battery that has never given me issues.

Every so often, and completely randomly, I would take a picture. It wouldn't load on the screen, and I'd hear a noise like something was flipping back and forth really fast. A clicking sound, almost. Hitting buttons would do nothing, and I'd have to shut down and turn off my camera to regain the ability to use anything. No errors popped up on the LCD, either. This is the first time I've ever had this happen.

Has anyone else ever experienced this?


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Rider66
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Jan 07, 2014 05:42 |  #2

I have a Mk2 too. I haven't experienced this problem, just occasionally no autofocus at all untill I shut down and re-start. I would get it checked out. If you are in the UK, fixation in London are excellent.

Good luck


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snake0ape
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Jan 07, 2014 06:28 |  #3

Don't know what is happening. But I would change memory card and battery and then see if problem still exist.


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TheAnt
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Jan 07, 2014 09:08 |  #4

snake0ape wrote in post #16584803 (external link)
Don't know what is happening. But I would change memory card and battery and then see if problem still exist.

Happened across 3 different memory cards from 3 different brands.


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N2bnfunn
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Jan 07, 2014 12:41 |  #5

First of all, if you spend that much money in a camera why would you not only use canon batteries, that is a must. start from there. and then you can try doing a warm reboot on your camera.


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rick_reno
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Jan 07, 2014 12:43 |  #6

It's probably trying to say "5D3"




  
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John ­ from ­ PA
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Jan 07, 2014 12:45 |  #7

Have you taken the lens off and looked around inside? Some 5D classics had issues with the mirror coming loose. Even a few people reported this with the Mk II. Some reports also exist of a loose focusing screen and some form of a plastic part that gets dislodged. In any event I'd be looking for something loose in the body that is triggered by taking a picture. That pretty much is the stuff behind the lens.




  
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TheAnt
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Jan 07, 2014 13:55 |  #8

N2bnfunn wrote in post #16585624 (external link)
First of all, if you spend that much money in a camera why would you not only use canon batteries, that is a must. start from there. and then you can try doing a warm reboot on your camera.

Because I'm a college student and don't have $80 to spend on a single battery.


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rrblint
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Jan 07, 2014 14:00 |  #9

John from PA wrote in post #16585635 (external link)
Have you taken the lens off and looked around inside? Some 5D classics had issues with the mirror coming loose. Even a few people reported this with the Mk II. Some reports also exist of a loose focusing screen and some form of a plastic part that gets dislodged. In any event I'd be looking for something loose in the body that is triggered by taking a picture. That pretty much is the stuff behind the lens.

+1 THIS.

Very doubtful that battery or memory card would be causing your problem.


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pwm2
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Jan 07, 2014 14:26 |  #10

It does sound like some form of mechanical or sensor (not talking about the image sensor) error - maybe the camera doesn't get correct feedback that the shutter curtains are moving as they should or that the mirror is opening as it should - so the camera tries again and again while waiting for a feedback that the mirror is either fully up or fully down.

How many shutter actuations does the camera have?

If the camera has battery issues, then it's more likely that it would shut down than starting to rattle some mechanics again and again. It's rather common for battery-operated equipment to have a brownout detector that resets the processor if the voltage dips below the safe voltage. And if the voltage drops slow enough (but not deep enough to trig a brownout detection) that the processor can itself measure a low voltage, then it's common that the processor performs an ordered shutdown while activating some battery-warning symbol.

But in the end - there is normally multiple safety guards to try to avoid the processor from issuing stupid commands to the hardware because of a low battery voltage. But there just might not be really good software error-recovery for some combinations of unexpected feedback signals from mechanical or optical actuation sensors.


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TheAnt
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Jan 07, 2014 18:13 |  #11

pwm2 wrote in post #16585908 (external link)
It does sound like some form of mechanical or sensor (not talking about the image sensor) error - maybe the camera doesn't get correct feedback that the shutter curtains are moving as they should or that the mirror is opening as it should - so the camera tries again and again while waiting for a feedback that the mirror is either fully up or fully down.

How many shutter actuations does the camera have?

If the camera has battery issues, then it's more likely that it would shut down than starting to rattle some mechanics again and again. It's rather common for battery-operated equipment to have a brownout detector that resets the processor if the voltage dips below the safe voltage. And if the voltage drops slow enough (but not deep enough to trig a brownout detection) that the processor can itself measure a low voltage, then it's common that the processor performs an ordered shutdown while activating some battery-warning symbol.

But in the end - there is normally multiple safety guards to try to avoid the processor from issuing stupid commands to the hardware because of a low battery voltage. But there just might not be really good software error-recovery for some combinations of unexpected feedback signals from mechanical or optical actuation sensors.

The camera has about 29,000 activations on it.


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John ­ from ­ PA
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Jan 07, 2014 20:35 |  #12

I suggested lens removal and looking around inside, have you done that?




  
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sega62
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Jan 07, 2014 23:12 |  #13

rick_reno wrote in post #16585629 (external link)
It's probably trying to say "5D3"

Love it




  
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Weird noise coming from 5D2 last night
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