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Thread started 01 Nov 2010 (Monday) 14:49
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How bad is the 5D2 AF really?

 
edman22
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Nov 01, 2010 14:49 |  #1

Hi everyone, so I'm still shooting film after all these years. I've held out on getting a DSLR for a long time. I've been using an EOS-3 with a 50mm 1.4 since about 2003..and that's it. I just recently picked up a 17-40 :)

Anyways, there's all this talk about the horrible AF of the 5d2...how bad is it really? My 10 year old EOS-3 has 45 point AF with I think something like 6 cross sensors. On paper this seems much better than the 5d2, but how does it perform in real life? Why would there have been a "downgrade" if we can call it one for the 5d2 when my decade old camera seems to have a better AF system? If the 5d2 performs as well or better than the EOS-3 then it's fine since I've never once had a problem with my beloved 3.

I'd love to hear from someone with experience with both cameras...but even if you don't I'd like to hear some experiences with the 5d2s "horrible" AF.


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Mundty
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Nov 01, 2010 14:55 |  #2

Can't say how it compares to the EOS 3. I went from the AE1 to the Rebel line and finally to a 5DII. I don't find the 5DII bad at all, granted it won't keep up with a 7D or 1DIV but I still find it very accurate. The center point is obviously the strongest AF point while the outside points are weaker.

If you feel like you need the best focus system around, go with a 7D or a 1DIV. Neither of these 2 cameras are slouches and will not disappoint. Wish I could give you a direct comparison, but the only Film SLR I've owned was my AE1.


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Ferrari_Alex
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Nov 01, 2010 14:58 |  #3

Don't listen to it......
AF is very good....I use 5D MKII


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DetlevCM
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Nov 01, 2010 14:59 |  #4

edman22 wrote in post #11205537 (external link)
Hi everyone, so I'm still shooting film after all these years. I've held out on getting a DSLR for a long time. I've been using an EOS-3 with a 50mm 1.4 since about 2003..and that's it. I just recently picked up a 17-40 :)

Anyways, there's all this talk about the horrible AF of the 5d2...how bad is it really? My 10 year old EOS-3 has 45 point AF with I think something like 6 cross sensors. On paper this seems much better than the 5d2, but how does it perform in real life? Why would there have been a "downgrade" if we can call it one for the 5d2 when my decade old camera seems to have a better AF system? If the 5d2 performs as well or better than the EOS-3 then it's fine since I've never once had a problem with my beloved 3.

I'd love to hear from someone with experience with both cameras...but even if you don't I'd like to hear some experiences with the 5d2s "horrible" AF.

I've just got a 5D MK II.

The key issue people complain about with the 5D MK II is that it has "only" 9 AF points (so what, do I need more?? - And yes, I do not shoot sports) which are too far apart for some and too close together for others of which only the centre one is cross type.

That's pretty much it - if you use the centre focus point on a 5D MK II then you have possibly one of, if not the best centre focus point of any camera.

And that's pretty much it - 9 AF points, only centre one cross type - that's the criticism.

So depending on what you shoot it can be a problem, or it might not be one.


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tkbslc
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Nov 01, 2010 15:01 |  #5

It actually has the best center point, but the worst outer points that canon makes.


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Erik_L
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Nov 01, 2010 15:04 |  #6

Hmm, out of the 1200+ photos I took this weekend in a very dark bar/club (with AF assist from my flash) about 4 of them were OOF due to technical reasons and a few more because I messed up. It's not necessarily fast (I missed a few shots that my 7D would have grabbed focus on quicker) but it's quite accurate. I used center point the entire time.

the extra 20 oz. of a 1D would have made the nights suck. hard.


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alpha_1976
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Nov 01, 2010 15:09 |  #7

It's fine unless you are shooting sports. Go ahead and have fun.


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cheehoo
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Nov 01, 2010 15:17 |  #8

Although the 5Dii won't be as snappy, it still holds it's own and I've never considered it to be a hinderance in my shooting.


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quattroatl
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Nov 01, 2010 15:20 |  #9

So are most 5D mkii owners using center-point and then recomposing? I don't look forward to this method with f/1.2 or f/1.4 lenses.


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Vermin87
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Nov 01, 2010 15:26 |  #10

quattroatl wrote in post #11205772 (external link)
So are most 5D mkii owners using center-point and then recomposing? I don't look forward to this method with f/1.2 or f/1.4 lenses.

I do that for narrower apertures and long focal distance shots, but in low light, it's almost easier to MF than to try to get the AF to work on an outer point.


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edman22
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Nov 01, 2010 15:29 |  #11

I've tried the 5D2 at a store and I didn't think it was that bad. I think for my purposes it should be fine...but some part of me feels strange about dropping 2.5k on a camera that is in any way lacking compared to my 10 year old body...


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tkbslc
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Nov 01, 2010 15:29 |  #12

quattroatl wrote in post #11205772 (external link)
So are most 5D mkii owners using center-point and then recomposing? I don't look forward to this method with f/1.2 or f/1.4 lenses.

It's not like the outer points are non-functional, they just aren't that great for AF tracking. (Assuming based on my 30D which has the same AF layout and outer point type)


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ianmarsh
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Nov 01, 2010 15:33 |  #13

quattroatl wrote in post #11205772 (external link)
So are most 5D mkii owners using center-point and then recomposing? I don't look forward to this method with f/1.2 or f/1.4 lenses.

I tend to focus using centre point and then crop with 1.2 lenses. Recomposing seems to be ok with 1.4


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proxes
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Nov 01, 2010 15:35 |  #14

I shot two days at a very dark convention and I was amazed how sharp the pictures were. I was mostly shooting in AV with flash.

Speaking from experience most focus problems are user related.


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toshiro7
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Nov 01, 2010 15:37 |  #15

it is this "bad" ;)

Canon 5D2 + 70-200 L f4 IS with central point focus in One Shot Mode:

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How bad is the 5D2 AF really?
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