5d Miii - Lenses won't focus -- Canon Digital Cameras in photography-on-the.net forums

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Mar 17, 2014 15:33 | #1

I tried to search but couldn't find anything previously posted. Right now the only lens I can consistently get to work on my 5d3 is my Sigma 1.4.

My canon 50 1.4 and pancake sometimes return an error 40 when they are on the body.

I have a 70-200 f/4 L and 100 f/2.8 L and when I put them on they both display " m focus" even though they aren't set to manual. Pushing any button doesn't do a darn thing, won't focus and shutter won't fire. Sometimes even with a full battery the camera won't power on with these lenses on, if I switch to my sigma everything is fine.

I know my 100mm works on another body. My firmware is 1.2.3 which I believe is the latest. I've reset the camera to factory settings and nothing has resolved my problem. I've tried multiple CF cards and the battery is fully charged.

I had sent the body to canon in November for an error 40 and they had to send it overseas to get it fixed. I'm guessing it was never fully resolved and based on what's happening I may need to send all canon lenses and the body in again?

I'm writing here in case there is something really obvious I'm missing.

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
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MakisM1

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Mar 17, 2014 15:35 | #2

Have you cleaned the contacts?

Gerry
Canon R6 MkII/Canon 5D MkIII/Canon 60D/Canon EF-S 18-200/Canon EF 24-70L USM II/Canon EF 70-200L 2.8 USM II/Canon EF 50 f1.8 II/Σ 8-16/Σ 105ΕΧ DG/ 430 EXII
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RobynK
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Mar 17, 2014 15:40 | #3

It was just factory cleaned at the end of November, would it really be that bad already? I can certainly try!

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
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MakisM1

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Mar 17, 2014 15:50 | #4

What about the lenses?Were their contacts cleaned too?

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RobynK
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Mar 17, 2014 15:55 | #5

Yeah, and I just cleaned them all again. Same problem except mostly the error 40 instead of M Focus problem. I'm guessing this thing is heading back to the repair shop.

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
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RayJ68

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Mar 17, 2014 15:55 | #6

This recently happened on my new 5d3, I had to send it to Canon and they said they replaced the lower circuit board.Maybe you are experiencing the same problem.

Nikon D7100 , Sigma 105mm macro , Sigma 150-500mm OS

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-MasterChief-

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Mar 17, 2014 15:56 | #7

http://kbsupport.cusa.canon.com …_ARTICLE&ARTICLE_ID=49160

Error 40 is related to power source issues. are you using factory batteries? have you tried pulling the coin battery and reseating?

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RobynK
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Mar 17, 2014 15:56 | #8

RayJ68 wrote in post #16765439

This recently happened on my new 5d3, I had to send it to Canon and they said they replaced the lower circuit board.Maybe you are experiencing the same problem.

Do you know about how much that cost?

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
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RobynK
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Mar 17, 2014 15:58 | #9

-MasterChief- wrote in post #16765441

http://kbsupport.cusa.canon.com …_ARTICLE&ARTICLE_ID=49160

Error 40 is related to power source issues. are you using factory batteries? have you tried pulling the coin battery and reseating?

Factory battery. I'll look up pulling the coin battery, that's the same as resetting or rebooting the camera isn't it?

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
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-MasterChief-

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Mar 17, 2014 16:01 | #10

RobynK wrote in post #16765445

Factory battery. I'll look up pulling the coin battery, that's the same as resetting or rebooting the camera isn't it?

this might help ...

https://photography-on-the.net …/showthread.php?t=1205511

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RobynK
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Mar 17, 2014 16:04 | #11

-MasterChief- wrote in post #16765450

this might help ...

https://photography-on-the.net …/showthread.php?t=1205511

Thanks!

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
www.facebook.com/blueeggphoto

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-MasterChief-

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Mar 17, 2014 16:05 | #12

Good Luck!!

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RobynK
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Mar 17, 2014 16:08 | #13

I think I need it, I'm on my third tiny screw driver and none are small enough

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
www.facebook.com/blueeggphoto

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RobynK
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Mar 17, 2014 16:15 | #14

No luck, I'm guessing CPS is really going to pay for itself this year. Then again insuring all of this gear when I send it is not cheap!

Canon 5d miii, 50mm 1.4, 100mm 2.8L, 70-200mm 4L, 580exii, Einstein strobe & Westcott 50x50 softbox
www.blueeggphoto.com
www.facebook.com/blueeggphoto

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Furlan

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Mar 17, 2014 16:20 | #15

I'm just curious was the camera purchased new from a US authorized dealer. I just cant see why
Canon would have the camera shipped overseas for repair as you mentioned. Any way I hope you get
it squared away.

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