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Archive 2007 · ['NEW Fix' UPDATE!] - MkIII AF still broken

  
 
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p.15 #1 · ['NEW Fix' UPDATE!] - MkIII AF still broken


here are 3 images, taken in order. One shot.


Dec 22, 2007 at 05:36 PM
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p.15 #2 · ['NEW Fix' UPDATE!] - MkIII AF still broken


2nd in sequence


Dec 22, 2007 at 05:36 PM
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p.15 #3 · ['NEW Fix' UPDATE!] - MkIII AF still broken


last. finally in focus.


Dec 22, 2007 at 05:38 PM
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p.15 #4 · ['NEW Fix' UPDATE!] - MkIII AF still broken


all focus point on center of can.


Dec 22, 2007 at 05:38 PM
apdieb
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p.15 #5 · ['NEW Fix' UPDATE!] - MkIII AF still broken


Need to post them with EXIF data...

EDIT: Nevermind. I see that the forum removes the EXIF...



Edited by apdieb on Dec 22, 2007 at 08:20 PM GMT



Dec 22, 2007 at 09:02 PM
apdieb
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p.15 #6 · ['NEW Fix' UPDATE!] - MkIII AF still broken


Here is my attempt at the same series. However, the fact that I am using a DP can may be the difference..

1DMark III purchased in July.. S# 525xxx no submirror repair yet.

I have been happy with mine. I hope the repair does NOT hose mine...

I want that 1yr warranty extension and the ability to sell with fix later, otherwise I would forgo the fix.

These are all taken with the 70-200IS F2.8 handheld... F2.8 1/100th, ISO 1600 at 140mm.



Edited by apdieb on Dec 22, 2007 at 08:21 PM GMT

Edited by apdieb on Dec 22, 2007 at 08:22 PM GMT



Dec 22, 2007 at 09:15 PM
apdieb
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p.15 #7 · ['NEW Fix' UPDATE!] - MkIII AF still broken


#2




Dec 22, 2007 at 09:16 PM
apdieb
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p.15 #8 · ['NEW Fix' UPDATE!] - MkIII AF still broken


#3


Dec 22, 2007 at 09:16 PM
apdieb
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p.15 #9 · ['NEW Fix' UPDATE!] - MkIII AF still broken


100% crop.




Dec 22, 2007 at 09:28 PM
Tom_W
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p.15 #10 · ['NEW Fix' UPDATE!] - MkIII AF still broken


It's apparent that Dr. Pepper is more focused than Coca Cola, or at least more consistent.

Oddly, besides having a focus inconsistency, the Coke can has an odd look to it. Can't quite explain it, but the color is kind-of "splotchy" as if the image was noisy, and also downsized.



Dec 22, 2007 at 09:39 PM
apdieb
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p.15 #11 · ['NEW Fix' UPDATE!] - MkIII AF still broken


Tom_W wrote:
It's apparent that Dr. Pepper is more focused than Coca Cola, or at least more consistent.

Oddly, besides having a focus inconsistency, the Coke can has an odd look to it. Can't quite explain it, but the color is kind-of "splotchy" as if the image was noisy, and also downsized.


Agree. It kinda looks like underexposed and brought up in post.

The DP can examples were straight from camera except for an Auto WB applied in Lightroom. No adjustments other than that.



Dec 22, 2007 at 09:43 PM
Jeff
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p.15 #12 · ['NEW Fix' UPDATE!] - MkIII AF still broken


OK, here's some more from my 'fixed' MkIII. Center-point only, nothing fancy (this is a 100% crop!). Looks pretty good, right?

Edited by Jeff on Dec 22, 2007 at 08:44 PM GMT (Reason: added 100%)



Dec 22, 2007 at 10:29 PM
Jeff
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p.15 #13 · ['NEW Fix' UPDATE!] - MkIII AF still broken


And another from this afternoon, again, pretty good...


Dec 22, 2007 at 10:29 PM
Jeff
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p.15 #14 · ['NEW Fix' UPDATE!] - MkIII AF still broken


But, the one right before it, at f/2.8:


Dec 22, 2007 at 10:30 PM
Jeff
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p.15 #15 · ['NEW Fix' UPDATE!] - MkIII AF still broken


WTH? I just don't get this, and this is what is so mind-numbing about these MkIII issues! When it is good, it is so, so good, and when...

Anyway one more from this morning, just to make myself feel better...





Dec 22, 2007 at 10:35 PM
Mark Powell
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p.15 #16 · ['NEW Fix' UPDATE!] - MkIII AF still broken


The Coca Cola can sequence has that slight "shadow" where the white lettering meets the red can...just as RG's did in some of his shots, and just as my mark2s do in bright sunshine with a white jersey and a dark background.

The DP can does not have this, but it doesn't have as much contrast.

I really want Canon to fix these AF and shadow issues so I can buy a new camera or 2. I've had the money in my piggy bank for awhile, but I'm not breaking into it until they've got this stuff fixed.

Merry Christmas



Dec 22, 2007 at 10:48 PM
apdieb
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p.15 #17 · ['NEW Fix' UPDATE!] - MkIII AF still broken


Ok.. Well here is a Coke can in the same situation.

minor exposure difference.
F2.8, 1/125th ISO1600 - Handheld - 70-200 at 160mm




Dec 22, 2007 at 11:04 PM
slau
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p.15 #18 · ['NEW Fix' UPDATE!] - MkIII AF still broken


Well, here is a 6 shot series with my 70-200f2.8IS on tripod, Al Servo, Center AF point, 10 fps, ISO 800, 6 ft distance, 200 mm, f2.8, 1/80 sec. The EXIF of all files retained.

Full frame resized shot:
http://www.pbase.com/image/90674079/original.jpg

A series of 6 shots, 100% crop actual pixel without any post processing:
http://www.pbase.com/stephenl/image/90674080/original.jpg
http://www.pbase.com/stephenl/image/90674081/original.jpg
http://www.pbase.com/stephenl/image/90674082/original.jpg
http://www.pbase.com/stephenl/image/90674083/original.jpg
http://www.pbase.com/stephenl/image/90674084/original.jpg
http://www.pbase.com/stephenl/image/90674085/original.jpg


I don't see any problem with Al Servo on static objects @ 10 fps with my 1DMk3. As all EXIF are available, you are more than welcome to check each image. The cloest focus distance of the 70-200f2.8IS lens is 4.6 ft.

Stephen







Dec 23, 2007 at 01:48 AM
slau
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p.15 #19 · ['NEW Fix' UPDATE!] - MkIII AF still broken


In a real world shooting with my 1DMk3, the result can be amazing. I do have thousands of good image to show how capable the 1DMk3 is just from my recent trip to Bosque.

Here is a shot almost full frame with minimal cropping for composition.
Canon EOS-1D Mark III ,Canon EF 500mm f/4L IS USM
1/3200s f/5.0 at 500.0mm iso400
http://www.pbase.com/stephenl/image/89874779/original.jpg

Here is a 100% actual pixel crop of the same image without any post procesing:
http://www.pbase.com/stephenl/image/90675058/original.jpg

Btw, I have been using a -13 AF MicroAdjustment for my 500f4IS which improves the sharpness significantly.

Stephen



Dec 23, 2007 at 02:20 AM
Wickedfn4u
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p.15 #20 · ['NEW Fix' UPDATE!] - MkIII AF still broken


I can't believe the coke shots until I see Pepsi or diet Pepsi.


Dec 23, 2007 at 02:54 AM
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