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DPChallenge Forums >> Hardware and Software >> 5D MK3 help
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Showing posts 1 - 14 of 14, (reverse)
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11/07/2014 01:14:07 PM · #1
My brother bought a 5D Mark 3 and he showed me that lenses will not autofocus in any mode but auto. I tried looking thru the menus and googling it but I can't figure it out. Anyone know how to fix this?
11/07/2014 01:17:25 PM · #2
First thing to do is to do a reset to factory defaults. You never know how the previous owner had it configured, and you want to start from fresh, the way that Canon intended you to receive the camera.
If you have a problem after the reset to default state, then it is likely that there is a real problem.
11/07/2014 01:19:44 PM · #3
it could be set to back button AF. factory default reset to be sure.
11/07/2014 01:23:32 PM · #4
Hmm, it's brand new
11/07/2014 01:25:33 PM · #5
Originally posted by smardaz:

Hmm, it's brand new


Well, that's not good then. If all lenses are behaving this way, I would suggest that he call Canon support and work through it with them. It is possible that there is a problem with the camera body. It's also possible that we're overlooking something...
11/07/2014 01:35:28 PM · #6
Is there an extender attached?
11/07/2014 01:48:08 PM · #7
Do you have a battery grip attached?
11/07/2014 02:04:24 PM · #8
Sold a Canon 40D recently and the buyer wanted to return it as all lenses appeared out of focus through viewfinder. Google search helped me discover his problem was the dioper needed adjusting. Doesn't sound like the same issue here though but thought worth a mention
11/07/2014 02:17:42 PM · #9
Originally posted by hahn23:

Do you have a battery grip attached?


There was one attached
11/07/2014 02:19:16 PM · #10


does focus work in live view mode?

Message edited by author 2014-11-07 14:19:26.
11/07/2014 02:20:59 PM · #11
Originally posted by smardaz:

Originally posted by hahn23:

Do you have a battery grip attached?


There was one attached


i though my 60D had a autofocus issue, but it turns out the hand grip i used why causing me to hit the button on the back and that would kill the focus.

the grip has the same button, as well as a shutter release,maybe its malfunctioning? try taking it off.
11/07/2014 02:26:37 PM · #12
Originally posted by smardaz:

Originally posted by hahn23:

Do you have a battery grip attached?


There was one attached

Check the switch on the grip. It has produced the mentioned symptom for me when I have the switch turned partially off and the camera set correctly.
11/07/2014 02:42:28 PM · #13
With help from the shop he bought it from:

Custom Settings>Shutter button was set to "Meter Only"

Oddly I did the reset camera settings twice and it didn't correct it.
11/07/2014 04:43:59 PM · #14
I don't think "Custom Settings" reset by default, they are linked to C-1, C-2 etc on the dial. I could be wrong.
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