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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 30 Apr 2012 (Monday) 11:41
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Anyone else's 7D AF go on the fritz within the first year?

 
appsyscons
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Aug 15, 2012 10:28 |  #31

appsyscons wrote in post #14354945 (external link)
In answer to OP question:
My 7D was purchased new 16 months ago.
No probems at all.

I am now at 20 months, everything working perfectly

Hope you get yours worked out soon


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Fligi7
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Aug 15, 2012 10:45 |  #32

appsyscons wrote in post #14861627 (external link)
everything working perfectly

Missing those days... :cry:




  
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appsyscons
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Aug 15, 2012 11:20 |  #33

Fligi7 wrote in post #14861676 (external link)
Missing those days... :cry:

Between myself, my son-in-law, and a good friend we have had 5 7Ds, and they all work prefectly, using a bunch of different lenses between the 3 of us. One 7D was new, 3 were Canon re-manufac, and 1 was used.

I have about 12,000 clicks on mine (one purchased new), and one of them (re-manufac) has over 30,000 clicks, that we put on it.

We did have 3 lenses that needed repair, but all were purchased used, and we knew about the problems, before we got them. Everything sent to Canon was fixed first time, and one went to a local guy in Orlando, also fixed first time.


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exerda
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Feb 20, 2013 17:53 as a reply to  @ appsyscons's post |  #34

I just got back from a trip to the Bosque del Apache, in which I wanted to try out my 500mm f4L II (last time I was there, I had only the 300mm f4L). A couple of weeks or so before the trip, I decided to upgrade from my venerable but great 50D to the 7D.

Yes, I should have given myself longer to familiarize myself with the new body--but the 7D certainly seems to suffer from some AF issues, which I discovered when reviewing the photos earlier this week.

Let me preface with the fact my 50D with the 500mm f4L II was generating fantastically sharp images--shots which were significantly better than anything I'd ever gotten out of the 300mm f4L. Even at ridiculous shutter speeds (say, 1/50), with the 1.4x attached, and almost wide-open (f6.3 - 7.1 with the 1.4x, so only stopped down 1/3 - 2/3 a stop), I consistently got great results. Yes, I shoot from a Whimberly head on a solid tripod, and yes, I have good long-lens technique. I've shot close to 100k exposures with the 50D without this sort of issue.

The 7D just seemed to produce shots which were slightly front- or back-focused. Mind you, I got some stunning shots, but my keeper rate was way down with the 7D compared to the 50D. Even at more closed-down apertures, say, f8-f11, I had significant front- and back-focusing in the shots I took. Many of the shots cleaned up OK with post-processing, but the raw captures were really quite unacceptably soft compared to the 50D using the same glass.

This was not just with the 500mm lens, either; my 24-105 yielded a lot of images which inexplicably were "off" in terms of AF. I took some at White Sands which is a challenging place for AF, I'll grant you, but which when using a single AF point on an easy target (like a person in dark clothes standing 20 feet away on a white dune), a lot of the shots came out very soft even at f16!

I've subsequently done a hard reset of the camera, tweaked my AF modes and several custom functions, and have done several test shots of birds in the back yard. These so far are acceptably sharp, but I am a bit concerned the AF problem will recur or hasn't actually been fixed. I am considering trying some lens microadjustments, but am worried that the AF issue wasn't consistent as to whether front- or back-focused and thus that those microadjustments aren't going to help.


Canon 6D; 7D mkII; EF 500mm f4L II; EF 24-105mm f4L; EF 300mm f4L IS; EF 16-35 f2.8L II; EF 24-70 f2.8L II; EF-S 10-22mm f3.5-4.5;1.4x TC III; 2x TC III Speedlite 580 EX II

  
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TeamSpeed
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Feb 20, 2013 18:19 |  #35

The only way to tell is to set up a static test subject and do some testing and adjusting.


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exerda
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Mar 03, 2013 09:48 as a reply to  @ TeamSpeed's post |  #36

A hard reset along with minor tweaks to AF settings (turning AF Servo sensitivity one stop slower, for example) has helped a lot. I haven't had much chance to shoot with the 500mm the past week or two, but the AF issues with the 24-105 have vanished after these adjustments.


Canon 6D; 7D mkII; EF 500mm f4L II; EF 24-105mm f4L; EF 300mm f4L IS; EF 16-35 f2.8L II; EF 24-70 f2.8L II; EF-S 10-22mm f3.5-4.5;1.4x TC III; 2x TC III Speedlite 580 EX II

  
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Larry ­ Weinman
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Mar 03, 2013 09:59 |  #37

I had one of the first ones to be sold by B&H and the focusing went haywire but I think the first production runs had problems. Canon replaced that body and I haven't had any problems since.


7D Mark II 6D 100mm f 2.8 macro 180mm f 3.5 macro, MP-E-65 300mm f 2.8 500mm f4 Tokina 10-17mm fisheye 10-22mm 17-55mm 24-105mm 70-300mm 70-200 f 2.8 Mk II 100-400mm Mk II 1.4 TCIII 2X TCIII 580EX II 430 EX II MT 24 EX Sigma 150-600

  
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TeamSpeed
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Mar 03, 2013 12:46 |  #38

I had a first production unit and it performed very well.


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Anyone else's 7D AF go on the fritz within the first year?
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