p.1 #1 · 24mm L mkII, autofocus on 5D MK II and MK III
I feel my 24 L MKII is the most difficult to focus for the 5d2, I'd say it's even harder to focus than a 85L. It seems I am not alone with this experience too
Simple question for those who updated their 5DII to a MK III, did the AF improve? Thank you
p.1 #2 · 24mm L mkII, autofocus on 5D MK II and MK III
Difficult to focus - I am not sure what your issue was. The AF didn't want to lock on or did you get slightly out-of-focus images although the AF according to the viewfinder/AF indicator was right on? Have you done AF micro adjustment of that lens with your Mark II?
I didn't have any focusing issue with the 24mmL Mark II using the 5D Mark II. I even used the outer AF points at wide open when I first got the lens and it was right on the money. Yes, the AF of the 5D Mark III is better than that of the predecessor but again, I didn't encounter any issue with the Mark II either.
p.1 #3 · 24mm L mkII, autofocus on 5D MK II and MK III
Hi,
no problem at portrait distances, unreliable at infinity. It was calibrated by Canon, microadjust does not help as focus accuracy goes down. I am using center AF point most of the time...
p.1 #4 · 24mm L mkII, autofocus on 5D MK II and MK III
The problem is that the magnification is much smaller than on the 85L. If you shoot a person at 5m with the 24L, there's way less detail for the AF to lock on than if you shoot with the 85L. That will be hard on any camera.
Personally I never had major issues with the 24L but that may have to do with the fact that it's one of the most used lenses for me, and definitely my favorite. But at the same time, all things autofocus got so much better when the 5D3 entered my life, and the same applies for the 24L. The only lens that didn't dramatically improve was the 50L.
p.1 #5 · 24mm L mkII, autofocus on 5D MK II and MK III
Hulot wrote:
no problem at portrait distances, unreliable at infinity.
At what aperture? Unreliable, as sometimes in focus and other time not in focus? Even at fairly large aperture, one would think that the inherent depth-of-field of a wide angle lens would be sufficient at fairly long distances, let alone at infinity. Could you post some images to illustrate your issue, please?
p.1 #6 · 24mm L mkII, autofocus on 5D MK II and MK III
I don't have any focus issues with the 24L II on my 5D II. Do you have another wide-angle lens to check and see if you may have the same problem? The center AF point is pretty accurate and reliable. I would suggest you send your lens and body to Canon for them to check.
p.1 #7 · 24mm L mkII, autofocus on 5D MK II and MK III
I get about 90% hit rate shooting between F/1.4-2.0 using any of the 41 cross type focus point on my 5D3. On the 5D2 it was in the 25% rate on the center point and around 0% on the outer points.
The same numbers apply to my 35L and 85L's.
p.1 #8 · 24mm L mkII, autofocus on 5D MK II and MK III
At light levels of EV5 and below you can expect inconsistent AF on all Canon DSLR's (except maybe the 1DX and 5D3, dont know much about their performance) even when using the center focus point only.
That said, focus at infinity is also inconsistent with wide angles, dont know why but it has happened to me also on several Canon bodies and lenses.
p.1 #9 · 24mm L mkII, autofocus on 5D MK II and MK III
bobbytan wrote:
I don't have any focus issues with the 24L II on my 5D II. Do you have another wide-angle lens to check and see if you may have the same problem? The center AF point is pretty accurate and reliable. I would suggest you send your lens and body to Canon for them to check.
I've owned 6 5D2's over the last 3+ years. Every single one has been the same.
I own 2 5D3's. Both have been incredible in focusing accuracy shooting wide open, or anywhere near it.
p.1 #11 · 24mm L mkII, autofocus on 5D MK II and MK III
Hulot wrote:
I feel my 24 L MKII is the most difficult to focus for the 5d2, I'd say it's even harder to focus than a 85L. It seems I am not alone with this experience too
Simple question for those who updated their 5DII to a MK III, did the AF improve? Thank you
It was only one test and I didn't shoot the objects in the same order (and relative depth shot to shot can affect AF performance), etc. etc. etc. and hadn't recently visited MFA for the 5D2 and that lens but for what it is worth I shot indoors, compact fluorescent lighting in the kitchen the other night and got with 24mm f/1.4L II at f/1.4:
5D3:
1 (arguably 2-3 if you get picky) out of 34 OOF
5D2:
9 (arguably 10-11 if you get picky) out of 34 OOF
p.1 #12 · 24mm L mkII, autofocus on 5D MK II and MK III
jerbear00 wrote:
Hmmm mine seems to work fine. According to Focal my 24L + 5d2 has a 3.4% focus variability wide open
yeah but charts are one thing, hitting real world targets of all sorts of types and different distances and different distance to previous target under differet lighting conditions can be another thing entirely
p.1 #13 · 24mm L mkII, autofocus on 5D MK II and MK III
AGeoJO wrote:
At what aperture? Unreliable, as sometimes in focus and other time not in focus? Even at fairly large aperture, one would think that the inherent depth-of-field of a wide angle lens would be sufficient at fairly long distances, let alone at infinity. Could you post some images to illustrate your issue, please?
i have to confirm that i have EXACTELY the same (sporadic) problem with the 24L II and not figured out yet what it is. my lens is callibrated with focal, as my other L-primes. its not a camera issue (can see it on 2 different 1D bodies).
p.1 #14 · 24mm L mkII, autofocus on 5D MK II and MK III
AGeoJO wrote:
At what aperture? Unreliable, as sometimes in focus and other time not in focus? Even at fairly large aperture, one would think that the inherent depth-of-field of a wide angle lens would be sufficient at fairly long distances, let alone at infinity. Could you post some images to illustrate your issue, please?
it just does not focus on the point, no matter what aperture. at f8 it is less of a problem of course. I still am interested if I the 5D3 is able to tame the beast and to give me more control.
p.1 #15 · 24mm L mkII, autofocus on 5D MK II and MK III
E. Aland
IMHO it is in bright daylight where the camera fails more often, I also get a better focus accuracy with a 5D at this distance. It looks like the camera side is also involved. I agree with you that it is sporadic as you say. That is also the problem, I want to know what the camera is doing.
p.1 #16 · 24mm L mkII, autofocus on 5D MK II and MK III
Hulot wrote:
it just does not focus on the point, no matter what aperture. at f8 it is less of a problem of course. I still am interested if I the 5D3 is able to tame the beast and to give me more control.
I am not asserting that your problem is not real, but since I didn't encounter any issues with 24mm Mark II on my 5D Mark II, I am still at a loss in figuring out the exact issue. At any rate, the AF system of the 5D Mark III is far better than that of the predecessor. So, since your original question is whether your chance of encountering any AF issue with your lens on the new 5D Mark III would be less then the answer is yes. Joe's post made a reference to that, as well. To what extent less, I am not sure, of course.
p.1 #17 · 24mm L mkII, autofocus on 5D MK II and MK III
Unless your 24 is mis-calibrated you should not have any problems focusing it on 5D II - it was always very fast on my 5D until it started back focusing by several feet and then it had to be adjusted..
