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ON PAPER, is the 5DIII AF better then the D800?

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MASTERPPA

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I'm asking the same question as I'm considering both options.

Facts are the D800 got the same AF module, the same Metering and the same CPU as the D4. That is not the case regarding the 5D3--1DX.

I went to the Nikon presentation with a NPS guy, and he was explained how the new AF works. Besides the AF module, the metering system has 91k pixel system with face detection, subject tracking and highlight analysis, that helps the AF subsystem by working ALL THE TIME, before shutter button is even halfpressed. If that's not enough, it's connected to an in-camera image database with thousands of pictures to help predict the AF and metering by anaylizing which one that most resembles what there, in front of the lens.

Also worth mentioning is that it works up tp F8 and the spot metering works for the selected AF, not just for the center point.

I left the presentation quite impressed.
 
Have to wait and see how they actually perform. D800 AF is mostly proven as it is an evolution of the D3 AF. Canon's is all new. Time will tell.
--
joeyv
 
This question until you fix your spelling error.
I can't help but.
 
Both are excellent and way above all other phase sensor from other companies.
--
It's all about photography
 
MASTERPPA said:
So, does this mean ON PAPER with a 2.8 lens, the 5 center AF points are better then the D800 af, since the D800 has none that are bother + and X??
Click to expand...
I seldom focus on paper with a 2.8 lens. However, when photographing real normal subjects, the double-cross of the Canon should result in a slight bit better focusing - assuming that Canon's focus algorithm is at least as good as Nikon's. Only real world shooting will figure this out.
--
tony
http://www.tphoto.ca
 
I think one reason I do not have as many focus problems with my 5DII as other people scream is I only use the center and mostly with 2.8 lenses..
tony field said:
MASTERPPA said:
So, does this mean ON PAPER with a 2.8 lens, the 5 center AF points are better then the D800 af, since the D800 has none that are bother + and X??
Click to expand...
I seldom focus on paper with a 2.8 lens. However, when photographing real normal subjects, the double-cross of the Canon should result in a slight bit better focusing - assuming that Canon's focus algorithm is at least as good as Nikon's. Only real world shooting will figure this out.
--
tony
http://www.tphoto.ca
Click to expand...
 
jindrich said:
I'm asking the same question as I'm considering both options.

Facts are the D800 got the same AF module, the same Metering and the same CPU as the D4. That is not the case regarding the 5D3--1DX.
Click to expand...
The 5D mk II's AF isn't all that great, but I am sure that both the 5D3, the 1D X and the D800/D4 have a very great AF that would be sufficient for almost everyone.

The question really isn't which is best, - but rather, is the one I am going to get sufficient for me in 99,99% of all situations I'll get into. The same thing goes with DR and resolution and everything else.
Sure 36 MP is better than 22, but if 22 is more than you need - who cares?
jindrich said:
I went to the Nikon presentation with a NPS guy, and he was explained how the new AF works. Besides the AF module, the metering system has 91k pixel system with face detection, subject tracking and highlight analysis, that helps the AF subsystem by working ALL THE TIME, before shutter button is even halfpressed. If that's not enough, it's connected to an in-camera image database with thousands of pictures to help predict the AF and metering by anaylizing which one that most resembles what there, in front of the lens.

Also worth mentioning is that it works up tp F8 and the spot metering works for the selected AF, not just for the center point.
Click to expand...
Which sounds like a very great feature - but for most people doesn't matter at all.
Actually I am with Canon on this one.

Even if Canon could easily make the same AF work at F8 I think it's a good thing they don't. Why? Don't I like freedom to choose myself? Of course, - but... Lenses with worse than f/5.6 really should be marked ad 'probably not what you want'. The diffraction limit is crossed already wide open! What good is 36MP or even 22MP going to do you, if your lense can't resolve that because of diffraction problem with F/8?
jindrich said:
I left the presentation quite impressed.
Click to expand...
And you should. As said, I am sure that both the AF of the 5D3, the 1D X and the D800/D4 is very impressive
 
The AF of the 5dmk2 was somewhat slow and accurate while using the center AF.

The new one, like all 1 serie AF should be both accurate and fast, with most of the sensor.
--
It's all about photography
 
?

This makes no sense whatsoever. Nor do many of your other posts, each seemingly trolling the 5dmkiii discussions.

Wake up.
 
DaDane said:
Even if Canon could easily make the same AF work at F8 I think it's a good thing they don't. Why? Don't I like freedom to choose myself? Of course, - but... Lenses with worse than f/5.6 really should be marked ad 'probably not what you want'. The diffraction limit is crossed already wide open! What good is 36MP or even 22MP going to do you, if your lense can't resolve that because of diffraction problem with F/8?
Click to expand...
I don't have the money and/or the option to carry a super expensive and heavy Super-Tele, so the use of an F4 lens with a 2x TC will be the only way to get to 600mm focal length. In that situation this feature will come in handy.

Canon has the better F4 lens collection, so it seems to make even more sense for Canon than Nikon. But I doubt that anyone interested in the 5D MKIII will buy a Nikon because of that feature...

As a Nikon shooter I am still looking very much forward to seeing what the 5D is capable of. There is a lot to like about it, and for sure some features I would love to have on my camera.

Cheers! Surf
 
DaDane said:
jindrich said:
I'm asking the same question as I'm considering both options.

Facts are the D800 got the same AF module, the same Metering and the same CPU as the D4. That is not the case regarding the 5D3--1DX.
Click to expand...
The 5D mk II's AF isn't all that great, but I am sure that both the 5D3, the 1D X and the D800/D4 have a very great AF that would be sufficient for almost everyone.

The question really isn't which is best, - but rather, is the one I am going to get sufficient for me in 99,99% of all situations I'll get into. The same thing goes with DR and resolution and everything else.
Sure 36 MP is better than 22, but if 22 is more than you need - who cares?
Click to expand...
Exactly. At the end of the day, the differences between these two cameras is going to be minimal but a lot of people will be trying to make a big deal out of minor differences. The 5DIII will make sense for a lot of people.
DaDane said:
DaDane said:
I went to the Nikon presentation with a NPS guy, and he was explained how the new AF works. Besides the AF module, the metering system has 91k pixel system with face detection, subject tracking and highlight analysis, that helps the AF subsystem by working ALL THE TIME, before shutter button is even halfpressed. If that's not enough, it's connected to an in-camera image database with thousands of pictures to help predict the AF and metering by anaylizing which one that most resembles what there, in front of the lens.

Also worth mentioning is that it works up tp F8 and the spot metering works for the selected AF, not just for the center point.
Click to expand...
Which sounds like a very great feature - but for most people doesn't matter at all.
Actually I am with Canon on this one.

Even if Canon could easily make the same AF work at F8 I think it's a good thing they don't. Why? Don't I like freedom to choose myself? Of course, - but... Lenses with worse than f/5.6 really should be marked ad 'probably not what you want'. The diffraction limit is crossed already wide open! What good is 36MP or even 22MP going to do you, if your lense can't resolve that because of diffraction problem with F/8?
DaDane said:
I left the presentation quite impressed.
Click to expand...
And you should. As said, I am sure that both the AF of the 5D3, the 1D X and the D800/D4 is very impressive
Click to expand...
--
Flickr: http://www.flickr.com/photos/26158506@N07/
 
DaDane said:
Even if Canon could easily make the same AF work at F8 I think it's a good thing they don't. Why? Don't I like freedom to choose myself? Of course, - but... Lenses with worse than f/5.6 really should be marked ad 'probably not what you want'. The diffraction limit is crossed already wide open! What good is 36MP or even 22MP going to do you, if your lense can't resolve that because of diffraction problem with F/8?
Click to expand...
Please.... take a look at the D800 samples. You'll find perfectly sharp f/10 pictures. There is so much BS going around it's hard to debunk... Diffraction at f/8 exists but is not/hardly visible, especially after sharpening.

And lenses 'worse than f/5.6'? These are sometimes the best lenses on the planet. For example, a Canon 600mm f/4 L IS USM Lens + 2x results in a 1,200mm f/8 IS lens.
 
The biggest factor for many, particularly sports/wildlife shooters, is that the D800 can AF with lenses to f8 which will allow AF with teleconverters. Also the 3D AF tracking is likely to give an advantage to certain types of photographers.
 
David Hull said:
Exactly. At the end of the day, the differences between these two cameras is going to be minimal but a lot of people will be trying to make a big deal out of minor differences. The 5DIII will make sense for a lot of people.
Click to expand...
Minimal? It's how you look at it. We pay the extra 100 bucks for a better filter. We spend thousands on L-lenses, etc... all for an even smaller increase in quality.

For me as a pro, I want the best I can afford, so I'll add the D800. If I made small-medium sized prints for a hobby I would stick to Canon.
 
On paper Canon's AF works differently too. Maybe it does requires X's and O's to lock into focus. All I know is that D800 also comes with an improved AF over its impressive predecessor.
 
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