5D AF sucks---see examples

Started Nov 6, 2008 | Discussions
Dragos Nenciu Regular Member • Posts: 491
Re: Same here

Barnett wrote:

Dragos Nenciu wrote:

Actually in my experience I find that the outer points are pretty
unreliable even in good light. The center point is good and works
well even in low light but a 1 point AF is kind of ridiculous this
day and time.

My experience is the same. With the 85mm f/1.2 I have had the outer
AF points back focusing by a mile in bright outdoor light (1/8000s,
f/1.2, ISO100). Yet in the same light the center AF point is always
spot on.

Barnett

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Yes the center point on the 5d is much better than the 20D and rebel I had before. But the rest of the points are an after thought.

I find the coverage and AF on the 1dmk3 to be amazing is the best of any camera on the market except maybe the D300.

It's a crop camera and only 10mpx but the images it creates are really good.

I would love a 1dsmk3 as the 21mpx would create super sharp and detailed images with the right lenses but can't afford it for now. Ah well I think I'll wait until it drops in price enough.

kruger Senior Member • Posts: 2,247
all day long with my 5D

190mph in a rough ocean, no problem buddy

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Dragos Nenciu Regular Member • Posts: 491
Re: all day long with my 5D

kruger wrote:

190mph in a rough ocean, no problem buddy

-- hide signature --

Was it just passing parallel with the camera, at the same distance? Also what was the f stop? Try doing that with a subject that comes toward you.

kruger Senior Member • Posts: 2,247
Re: all day long with my 5D

Dragos Nenciu wrote:

kruger wrote:

190mph in a rough ocean, no problem buddy

Oh please, like you have any experience with real action ?Go read another magazine

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Dragos Nenciu Regular Member • Posts: 491
Re: all day long with my 5D

kruger wrote:

Dragos Nenciu wrote:

kruger wrote:

190mph in a rough ocean, no problem buddy

Oh please, like you have any experience with real action ?Go read
another magazine

-- hide signature --

Sure if I don't agree with you I must be a troll no!?

Now the second shot is more like it and nicely done.

You can use the 5d to shoot subjects like this as long as you can track the shot with the center point and take enough pics to chose the ones in focus.

That does not invalidate my point.

The problem is capturing shots with off center focus.

kruger Senior Member • Posts: 2,247
Re: all day long with my 5D

Dragos Nenciu wrote:

Sure if I don't agree with you I must be a troll no!?

Sorry was just messing with ya. I never shot sports with a 5D. I owned a 5D for about all of 3 days

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Dragos Nenciu Regular Member • Posts: 491
Re: all day long with my 5D

kruger wrote:

Dragos Nenciu wrote:

Sure if I don't agree with you I must be a troll no!?

Sorry was just messing with ya. I never shot sports with a 5D. I
owned a 5D for about all of 3 days

-- hide signature --

How come only 3 days?

ATR
ATR Regular Member • Posts: 458
..not sure about the AF, but..#2 has worst vignetting Iv'e ever seen!:P (nt)
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Cesare Ferrari Regular Member • Posts: 431
Re: f/4 - Ha, ha, ha....

Most focus errors are technique, not the technology. If I were you and you were really bothered about focus I would be focussig manually anyhow. This works for me although the viewfinder on 35mm cameras is small and difficult to judge at times. I guess one of the better screens for manual focus would be a good buy.

I take plenty of MF film shots with an RZ67 and a Mamiya C3 and these are a joy to use with their large (6*6cm) screens. The focus really pops when it's right.

Cesare

 Cesare Ferrari's gear list:Cesare Ferrari's gear list
Canon EOS-1D Mark II Canon EOS-1Ds Mark II Canon EOS 5D Mark II Fujifilm X-Pro1 Fujifilm X-T1 +1 more
tiha Regular Member • Posts: 296
Nikon D3

These pictures were shot with Nikon D3

Barnett Contributing Member • Posts: 929
LOL (nt)

nt=no text

Cal Dawson Veteran Member • Posts: 4,810
Re: 5D AF sucks---see examples

Yes it looks average... I would be surprised if the old rebel had an issue with focus in these examples...
--
Cal

Put a Canon to your head, You deserve it....

http://funshots.smugmug.com/

David Pastern Contributing Member • Posts: 726
Re: Be honest

Then why bother buying a modern camera, might as well buy a non AF camera. The AF is a tool, and it should work reliably. That said, it's not a perfect tool, and I don't think the 5D has done a bad job of things here. Light levels were probably low, we don't know what lens was being used, since EXIF shows everything else other than lens type/f stop etc. Shooting at f4 is still going to give a pretty narrow DOF range as well, and that won't help your cause. Add to that, there's movement, and you're asking for trouble. Only a 1 series camera's AF would have dealt with this better imho.

All in all, they're not too bad shots given the shooting scenario.

Dave

memento Contributing Member • Posts: 774
tough test... or not

People standing still or almost, center point, good light and contrasty subjects, narrow aperture.

Be serious.

harrygilbert Senior Member • Posts: 2,799
And maybe not.....

Shot at Branson, MO with 70-200 f/2.8L IS, handheld

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john Senior Member • Posts: 1,620
Re: 5D AF sucks---see examples

you can change a out of focus image into a sharp photo again, just by applying large among of sharpmask and then scale down to 640X480, I used this trick and was able to fool alot of people.

amobi
OP amobi Veteran Member • Posts: 3,136
Congratulation

You just cracked my secrete.

amobi
OP amobi Veteran Member • Posts: 3,136
Re: ..not sure about the AF, but..#2 has worst vignetting Iv'e ever seen!:P (nt)

ATR wrote:

One man's meat another man's poison.

genotypewriter Veteran Member • Posts: 4,846
You talk as if you tested a 5D2 [nt]

Barnett wrote:

woolcan wrote:

I used my 5D all weekend shooting the Keeneland Horse sales. I used
off center af on all my pics at ISO 6400 and they are good enough for
newspaper print. They also look fine for 4 X 6's or 5 X 7's. I
wouldn't go much past that.. but the comments about the 5d focusing
being no good except the center af is wrong.

I am sorry but I did not buy a 12 MP camera for "good enough for
newspaper print". Different people have different requirements but
my guess is that what you would consider to be "good enough", I would
just delete.

If you want to get a sharp photo at the full 12 MP resolution
capability of the 5D you have to nail the focus. The 5D simply
cannot do this at large apertures using the outer AF points. And
good luck trying to get a sharp 20 something MP photo from the 5D Mk
II with that same AF sensor...

Barnett

Barnett Contributing Member • Posts: 929
Re: You talk as if you tested a 5D2

You talk as if you have some strange psychological need to defend the 5DMKII, possibly because you have decided to buy it and now cannot stand people making you doubt your decision? Either that or you have not heard that the 5DMkII has the same AF sensor as the original 5D?

Either way, Canon has stated that the 5DMKII has the exact same AF sensor as the old 5D and it will therefor have the same problems as the old 5D - only magnified by the higher resolution sensor.

But if you want to believe that the 5DMKII AF will somehow be magically better than the old 5D then please do not let me stop you from believing that.

Barnett

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