The latest report on 1D Mark III AF issues

Permagrin wrote in post #3436542
I just saw this over at FM

...as I'm depressing the * button pointing the camera around the store on different subjects the focusing is responding albeit a little slow. I decided to set CF IV - 2 back to the default setting and again start to point the camera around, but this time with the AF-ON button the AI Servo was reponding much quicker in snapping new targets into focus. I thought I was losing it. I called the guy I usually deal with over and set the camera both ways without saying anything as to why. He looked at me and said why is it faster the 2nd way. The lens was a Canon 75-300 non IS. NO speed demon in its own right. It was more responsive with the AF-ON button. So please test and see what you get. Thanks C.J.

http://www.fredmiranda​.com/forum/topic/53562​7/71

has anyone tested this out to see if it's different with their cameras (and if it helps the AF?)? I haven't as of yet...(and I automatically switched from the AF button to the * for AF)

I just tried this here at home and I can't see any difference in focus speed. It was pretty fast both ways.

blonde wrote in post #3436196
just to clear it up on my comments to Perm on that Osprey thread. i never said that it was the issue 100% but i do think that something was off due .....

But, you did say:

Exactly means 100% in my book, but sorry if I miss read it. It appeared you were very quick to jump on a soft image, and point it to the MK3 tracking issue. At the same time, you dismiss everyone's attempt at showing a good tracking example. People have posted examples that are very similar to Rob's example, yet you find some reason to dismiss it. It feels like you only want to hear the bad reports.

I'm not saying there isn't a focus issue, because people with 1d experience are having some troubles. It may be a learning curve, or a design flaw, or maybe just a few bad cameras. I hope you get your hands on a 3 soon, so you could satisfy your own interests one way or the other. Repeating the OOF series, and dismissing the good examples isn't helping anyone who's undecided about the camera.

JC4 wrote in post #3437234
But, you did say:

Exactly means 100% in my book, but sorry if I miss read it. It appeared you were very quick to jump on a soft image, and point it to the MK3 tracking issue. At the same time, you dismiss everyone's attempt at showing a good tracking example. People have posted examples that are very similar to Rob's example, yet you find some reason to dismiss it. It feels like you only want to hear the bad reports.

I'm not saying there isn't a focus issue, because people with 1d experience are having some troubles. It may be a learning curve, or a design flaw, or maybe just a few bad cameras. I hope you get your hands on a 3 soon, so you could satisfy your own interests one way or the other. Repeating the OOF series, and dismissing the good examples isn't helping anyone who's undecided about the camera.

thank you.

Juan Zas wrote in post #3435747
Some people has complained about focus issues with the Mk III is starting to receive E-Mails from Canon:

I got the same email from Canon this morning.

Arthur Morris' guide has several settings for BIF. I will try them also and see. I don't think he has weighed in on the issue thus far (I couldn't find it at least.) I understand he is like Mr. Birdman himself. It does seem unlikely however, that so many experienced photogs could be lead astray simply due to a camera's settings being off. As with the Camera's release, Canon's silence contributes to the problem. With a lack of info, folks will always fill the void, regardless if truth or not. lol Others keep saying that this is such a different camera, built from the ground up, that one's knowledge base carried on from the II series is of little value, or may actually contribute to closing a few people's mind and flexibility to this issue. Personally, no idea, but I have heard the slamming of a few heads. Maybe to take any possible solution and slamming it before even trying it might be an example of such inflexibility and closed mindedness. My mind is always OPEN, probably why my brain fell out long ago!

Yeah, this should all probably be moved to the other thread dedicated to this topic instead of the "where and who" thread this is supposed to be.

Pulled. Determined it wasn't a good example. You can see it here if you're interested: Click

I don´t know really if this have been posted (so many settings !!) but Canon Spain is delivering to people that claim they have an AF focus problems, these settings to use like a program to capture images of actions at high fps. The said it improves the capture.

C.FN I Exposicion:
1-Ajuste 0
2-Ajuste0
3-Ajuste Activar
4-Ajuste 0
5-Ajuste 0
6-Ajuste 0
7-Ajuste 0
8-Ajuste 0
9-Ajuste Desactivar
10-Ajuste Desactivar
11-Ajuste 0
12-Ajuste Desactivar
13-Ajuste Desactivar
14-Ajuste Desactivar
15-Ajuste 0

C.FN II: IMAG/EXP.FLASH/INF.
1-Ajuste 0
2-Ajuste 0
3-Ajuste 0
4-Ajuste 0
5-Ajuste 0
6-Ajuste 0
7-Ajuste 0
8-Ajuste 0
9-Ajuste 0

C.FN III: AUTOFOCO/AVANCE
1-Ajuste 0
2-Ajuste (3ª marca)
3-Ajuste 1
4-Ajuste 0
5-Ajuste 1
6-Ajuste 0
7-Ajuste 0
8-Ajuste 2
9-Ajuste 0
10-Ajuste 0
11-Ajuste 0
12-Ajuste 0
13-Ajuste 0
14-Ajuste 0
15-Ajuste 0
16-Ajuste Desactivar
17-Ajuste Desactivar

C.FN IV: FUNCIONAMIENTO/OTROS
1-Ajuste 2
2-Ajuste 1
3-Ajuste 0
4-Ajuste 0
5-Ajuste 0
6-Ajuste 0
7-Ajuste 0
8-Ajuste 0
9-Ajuste 0
10-Ajuste 0
11-Ajuste 0
12-Ajuste Desactivar
13-Ajuste 0
14-Ajuste 0
15-Ajuste 0
16-Ajuste 1

I think is not necesary any translation, is quite straight forward.

I hope can help to somebody, as I do not have a MkIII yet I can not valorate it.

The colleague that has had some troubles taking action photos has implemented it and after some test with his son running to him, it looked like the camera did perform better, noone OOF in the 18 sg. sequence, just a slight change in contrast between some images in the sequence only.

Got the machine on Sat. I tested it yesterday in Hollywood, CA. I posted a 100% crop. Lens used a 70-200 f4 at f6.3 1/320 ISO 100 at 200mm. Image is here:
http://www.dataxy.com/​1dmk3.html
I'll post more later

another pic here
http://www.dataxy.com/​images/1dmk3/test4.jpg

It must be me, but I can't see anything in perfect focus in that one.

Papaw wrote in post #3439470
It must be me, but I can't see anything in perfect focus in that one.

It does look a bit soft, but not bad for a 100% crop. Shot at f/4, 200mm, 1/800. Could have been a 70-200 f/4, wide open? In which case it looks pretty good. Also I'd guess the car was moving? It doesn't appear the camera was being panned, so It's fine.

But, it really doesn't say anything to the Servo AF performance. Could have easily been shot in one-shot, I'd think.

JC4 wrote in post #3441699
Could have been a 70-200 f/4, wide open? In which case it looks pretty good.

Hmm, I remember somebody writing very confidently that the f4 verison of the lens is the sharpest of the 70-200 family (of course that was read from the Internet, so it's probably untrue ), and that picture is very soft to properly focused picture taken with 70-200/2.8 IS wide open... But just one pic doesn't really tell us anything.

Yo Jaker, do I press the "order now" button or not ?
Lottsa post here, not much Servo AF meat.
LesZ makes a nice and lengthy case on Naturescapes Net, but I just don't seem to be able to extract a firm bottom line out of it.
So I am waiting for your progress report. Keenly.

PetKal wrote in post #3441875
Lottsa post here, not much Servo AF meat.

Look at post #14 and #15. Plenty more too, if you dig deeper. I think there is plenty of Servo AF examples here. No?

dataxy.com wrote in post #3439411
another pic here
http://www.dataxy.com/​images/1dmk3/test4.jpg

This picture is sharp. I would not expect any modern camera (except 5D) to take a sharper picture than this.