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FORUMS ➔ Cameras, Lenses & Accessories ➔ Canon Digital Cameras 
Thread started 15 Sep 2007 (Saturday) 10:26
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-Official- 1D MK III AF Thread. Firmware? Hardware Fix Is IN!!!

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Dellboy
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Oct 04, 2007 12:06 |  #346

outdoorphoto.ca wrote in post #4063230 (external link)
I know this question has probably come up before. But here goes.

I use my Mark III almost exclusively using only the center focus point while using one shot.

I have been getting mixed results using this method.

Is this also a problem with the Mark III, in addition to the documented problems while using AI Servo ?

Or are the focus issues strictly relating to using AI Servo?

As far as I understand the problems are almost exclusively AF problems in Al servo

If you using large apertures at close distances then you will have focus problems with the focus recompose method - you'll probably see some back focus issues. It is a bad technique - use the closest focus point possible




  
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Dellboy
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Oct 04, 2007 12:14 |  #347

Check out this thread

http://visual-vacations.com …focus-recompose_sucks.htm (external link)

Sorry Belmondo hopefully we can get back on track now.




  
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kenyc
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Oct 04, 2007 12:14 |  #348

Dellboy wrote in post #4063267 (external link)
As far as I understand the problems are almost exclusively AF problems in Al servo

If you using large apertures at close distances then you will have focus problems with the focus recompose method - you'll probably see some back focus issues. It is a bad technique - use the closest focus point possible

Unfortunately they are not and that has been addressed multiple times in this thread and it's predecessor.

KAC

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Dellboy
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Oct 04, 2007 12:18 |  #349

kenyc wrote in post #4063324 (external link)
Unfortunately they are not and that has been addressed multiple times in this thread and it's predecessor.

KAC

My bad then and I'm sorry to here about your issues.

I have followed this thread and some of the previous thread and most issues I've read seem to be tracking problems in Al servo, in particular BIF. Obviously I've missed some though.




  
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photoroebucks
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Oct 04, 2007 15:35 as a reply to  @ Dellboy's post |  #350

just got my markIII back from canon service center in cali
firmwire 1.1.0
FYI

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1D3, 5D3, 70-200 2.8 is ii,16-35 2.8 ,24 1.4 ii ,50 1.2,85 1.2 ii,135 2.0, 300 2.8is, hasselblad stuff, Profoto stuff, some other stuff, I sure do like stuff

  
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kenyc
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Oct 04, 2007 16:08 |  #351

photoroebucks wrote in post #4064446 (external link)
just got my markIII back from canon service center in cali
firmwire 1.1.0
FYI

Not sure if this is allowed here per the topic, but did it have a focus problem? or was it sent in for something else.

KAC

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photoroebucks
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Oct 04, 2007 16:21 as a reply to  @ kenyc's post |  #352

it had been pretty spot on most of the time.still Im no af guru.;)
b4 this camera I would never use af now im inclined to use it a bit more
some issues with tracking but spot on in one shot

greg roebuck.com
1D3, 5D3, 70-200 2.8 is ii,16-35 2.8 ,24 1.4 ii ,50 1.2,85 1.2 ii,135 2.0, 300 2.8is, hasselblad stuff, Profoto stuff, some other stuff, I sure do like stuff

  
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photoroebucks
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Oct 04, 2007 16:27 as a reply to  @ photoroebucks's post |  #353

oh I shoulda said
it went in for error 99

greg roebuck.com
1D3, 5D3, 70-200 2.8 is ii,16-35 2.8 ,24 1.4 ii ,50 1.2,85 1.2 ii,135 2.0, 300 2.8is, hasselblad stuff, Profoto stuff, some other stuff, I sure do like stuff

  
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Oct 04, 2007 18:30 |  #354

Dellboy wrote in post #4063267 (external link)
As far as I understand the problems are almost exclusively AF problems in Al servo

If you using large apertures at close distances then you will have focus problems with the focus recompose method - you'll probably see some back focus issues. It is a bad technique - use the closest focus point possible

I'm with Kenny - One Shot is my biggest gripe.

I have it down to failing within two frames, here's the latest (focus on the eye):

IMG NOTICE: [NOT AN IMAGE URL, NOT RENDERED INLINE]

It's clearly front-focused by some margin (on God knows what though - there's nothing in the fore-ground which it could have accidently locked on).

EOS-1D X Mark II| EOS 5D Mark IV | EOS 80D | EOS-1V HS
L: 14/2.8 II | 17/4 | 24/1.4 II | 24/3.5 II | 35/1.4 II | 50/1.2 | 85/1.2 II | 100/2.8 Macro IS | 135/2 | 180/3.5 Macro | 200/2.8 II | 300/2.8 IS III | 400/2.8 IS III | 500/4 IS III | 600/4 IS III | 8-15/4 Fisheye | 11-24/4 | 16-35/2.8 III | 24-70/2.8 II | 70-200/2.8 IS III | 100-400/4.5-5.6 IS II | 200-400/4 IS 1.4x
Sundry: 430EX III-RT | 600EX II-RT | 1.4x III | 2x III | 12 II | 25 II | OC-E4

  
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Dellboy
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Oct 04, 2007 18:48 |  #355

With the problems in one shot are these still unfixable by Canon?




  
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cwphoto
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Oct 04, 2007 18:56 |  #356

Dellboy wrote in post #4065552 (external link)
With the problems in one shot are these still unfixable by Canon?

Well unfixed at this point, hopefully not unfixable.

EOS-1D X Mark II| EOS 5D Mark IV | EOS 80D | EOS-1V HS
L: 14/2.8 II | 17/4 | 24/1.4 II | 24/3.5 II | 35/1.4 II | 50/1.2 | 85/1.2 II | 100/2.8 Macro IS | 135/2 | 180/3.5 Macro | 200/2.8 II | 300/2.8 IS III | 400/2.8 IS III | 500/4 IS III | 600/4 IS III | 8-15/4 Fisheye | 11-24/4 | 16-35/2.8 III | 24-70/2.8 II | 70-200/2.8 IS III | 100-400/4.5-5.6 IS II | 200-400/4 IS 1.4x
Sundry: 430EX III-RT | 600EX II-RT | 1.4x III | 2x III | 12 II | 25 II | OC-E4

  
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Oct 04, 2007 19:08 |  #357

cwphoto wrote in post #4065425 (external link)
I'm with Kenny - One Shot is my biggest gripe.

I have it down to failing within two frames, here's the latest (focus on the eye):
IMG NOTICE: [NOT AN IMAGE URL, NOT RENDERED INLINE]

It's clearly front-focused by some margin (on God knows what though - there's nothing in the fore-ground which it could have accidently locked on).

it's got great bokeh though! :p

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Oct 04, 2007 19:10 |  #358

Cathpah wrote in post #4065668 (external link)
it's got great bokeh though! :p

Testing 50/1.2. Nice lens so far.

EOS-1D X Mark II| EOS 5D Mark IV | EOS 80D | EOS-1V HS
L: 14/2.8 II | 17/4 | 24/1.4 II | 24/3.5 II | 35/1.4 II | 50/1.2 | 85/1.2 II | 100/2.8 Macro IS | 135/2 | 180/3.5 Macro | 200/2.8 II | 300/2.8 IS III | 400/2.8 IS III | 500/4 IS III | 600/4 IS III | 8-15/4 Fisheye | 11-24/4 | 16-35/2.8 III | 24-70/2.8 II | 70-200/2.8 IS III | 100-400/4.5-5.6 IS II | 200-400/4 IS 1.4x
Sundry: 430EX III-RT | 600EX II-RT | 1.4x III | 2x III | 12 II | 25 II | OC-E4

  
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Oct 04, 2007 19:42 as a reply to  @ cwphoto's post |  #359

do you think the 50 1.2 is a good lens to judge the M3 by? It's notorious for front or back focusing...btw. this and your 24-70 that front (or back, I can't remember which) focuses, you might want to test the M3 with something you know focuses properly to see where it's really at.

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Oct 05, 2007 00:46 |  #360

Permagrin wrote in post #4065859 (external link)
do you think the 50 1.2 is a good lens to judge the M3 by? It's notorious for front or back focusing...btw. this and your 24-70 that front (or back, I can't remember which) focuses, you might want to test the M3 with something you know focuses properly to see where it's really at.

1) The 50/1.2 was shot wide-open. There are no reported focusing problems with this lens when shot as such.
2) I have found the same focus problem with every lens I have tested: 24/1.4, 24-70/2.8, 70-200/2.8 IS, 85/1.2 II, and now the 50/1.2 - I don't think it is lens related.

EOS-1D X Mark II| EOS 5D Mark IV | EOS 80D | EOS-1V HS
L: 14/2.8 II | 17/4 | 24/1.4 II | 24/3.5 II | 35/1.4 II | 50/1.2 | 85/1.2 II | 100/2.8 Macro IS | 135/2 | 180/3.5 Macro | 200/2.8 II | 300/2.8 IS III | 400/2.8 IS III | 500/4 IS III | 600/4 IS III | 8-15/4 Fisheye | 11-24/4 | 16-35/2.8 III | 24-70/2.8 II | 70-200/2.8 IS III | 100-400/4.5-5.6 IS II | 200-400/4 IS 1.4x
Sundry: 430EX III-RT | 600EX II-RT | 1.4x III | 2x III | 12 II | 25 II | OC-E4

  
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-Official- 1D MK III AF Thread. Firmware? Hardware Fix Is IN!!!
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