pancakes

MicrostockGroup Sponsors


Author Topic: rewiews about CANON 1 Ds MKIII  (Read 13514 times)

0 Members and 1 Guest are viewing this topic.

DanP68

« Reply #25 on: August 09, 2008, 06:25 »
0
Here is a fantastic analysis of the AF concerns by Rob Galbraith:

http://www.robgalbraith.com/bins/multi_page.asp?cid=7-8740-9068


Under certain conditions, the camera is unable to properly track a moving subject. We've shot numerous sequences of 20+ frames where no more than five or six frames are in focus, even when the AF point has been on the subject throughout.


Many claim the problems have been rectified with the firmware upgrades.  Others aren't so sure.  Very interesting reading.

FYI I was able to acquire a used Mark IIn from a reliable sports shooter on the Fred Miranda boards.  I cannot wait for football season!


« Reply #26 on: August 09, 2008, 11:14 »
0
Here is a fantastic analysis of the AF concerns by Rob Galbraith:

http://www.robgalbraith.com/bins/multi_page.asp?cid=7-8740-9068


Under certain conditions, the camera is unable to properly track a moving subject. We've shot numerous sequences of 20+ frames where no more than five or six frames are in focus, even when the AF point has been on the subject throughout.


Many claim the problems have been rectified with the firmware upgrades.  Others aren't so sure.  Very interesting reading.

FYI I was able to acquire a used Mark IIn from a reliable sports shooter on the Fred Miranda boards.  I cannot wait for football season!

The article is about the 1d not the 1ds.

I have only used it in one shot mode but it seems to focus better than my 5d. Especially locking onto shadow areas on bright sunny day. I had a few focus points on the 5d that were useless in this situation, very frustrating. I haven't had this problem with the 1ds yet.
« Last Edit: August 09, 2008, 11:52 by cdwheatley »

DanP68

« Reply #27 on: August 09, 2008, 14:37 »
0
As I understand it, the 1ds and 1d AF mechanisms are identical.  So the problem exists across both models.  There are a lot of sports shooters who refuse to touch either of the Mark III models, and have bought Mark II's instead.

It's a very controversial topic.  There are posters on the FM boards who suggest it is almost like getting an unlucky lemon as a new car.  If you get a model with no AF issues, you are golden, no worries.  If your model has problems with the AF, good luck returning it.

« Reply #28 on: August 09, 2008, 15:25 »
0
Thats interesting, can you post a link?.  Thats the first I have heard or read about focus problems with the 1Ds..The way I understand it they fixed the issue before they released the 1Ds. The only issue I have heard about with 1Ds is that some models were shipping with crooked viewfinders.

« Reply #29 on: August 09, 2008, 17:06 »
0
I read the other day that everything is fixed to the point where Rob Galbraith is happy with the AI Servo with only one issue....here's what they have to say on their site (updated Aug 1)

Q. After more than a year, three firmware updates and a hardware fix, does the Canon EOS-1D Mark III now offer reliable AI Servo autofocus?  How about the EOS-1Ds Mark III?

Both of Canon's current 1-series models now deliver acceptably stable and accurate autofocus of subjects that are stationary or whose distance to the camera is changing fairly slowly. With the lenses we own, from wide angle to supertelephoto, we have no significant complaints about the EOS-1D Mark III with firmware v1.2.3 and EOS-1Ds Mark III with firmware v1.1.2 when photographing things that are static or moving slowly. Are these camera reliable for shooting things that mostly hold still? In our experience, yes.

(It should be noted that we've had a number of complaints about static focus consistency with these cameras and the new firmware from owners of the EF 50mm f/1.2L and EF 85mm f/1.2L II, but because we've not used either lens we can't confirm an autofocus problem when they're used with the Mark III models.)

When using telephoto lenses at wide apertures and subject-to-camera distance changes more rapidly (as it does often when shooting sports), autofocus performance is mixed at best. The tendency of these cameras to frontfocus when tracking in any light, combined with autofocus performance in backlit or shadowy conditions that can at times be poor, means that the EOS-1D Mark III with firmware v1.2.3 and EOS-1Ds Mark III with firmware v1.1.2 produce too many out of focus frames of subjects that are moving quickly.

Canon has put considerable effort into correcting and improving EOS-1D Mark III autofocus in the 14 months since the cameras was introduced, but they have not yet made it, or its high-resolution counterpart the EOS-1Ds Mark III, deliver reliable autofocus of subjects in motion.

« Reply #30 on: August 09, 2008, 19:35 »
0
Thanks for the link. Checked out Rob Galbraith's site (long read!!) Looks like there is still a problem with both models. Lucky for me I don't shoot action. If I was a sports or wildlife shooter I would probably want the mkII as well unless they can fix the tracking issue. I will say I have yet to see a problem shooting still subjects.


 

Related Topics

  Subject / Started by Replies Last post
2 Replies
6368 Views
Last post April 03, 2006, 07:37
by leaf
5 Replies
11183 Views
Last post February 22, 2007, 06:48
by CJPhoto
5 Replies
4075 Views
Last post November 27, 2007, 14:16
by vonkara
15 Replies
23329 Views
Last post May 20, 2008, 08:17
by RASimon
16 Replies
12450 Views
Last post August 12, 2012, 05:46
by Robic

Sponsors

Mega Bundle of 5,900+ Professional Lightroom Presets

Microstock Poll Results

Sponsors