zarray Member 167 posts Likes: 5 Joined Oct 2010 Location: Singapore/ London More info |   IMG_9971 by JK 91, on Flickr IMG_9969 by JK 91, on Flickrsome 100% crops to back up what I was mentioning about. The second image is still considered "in-focus" but not "perfectly focused" as in the first image. Not too sure whether I'm being too hard on an F1.4 lens though  I'm guessing this is the problem that plagues most 3rd party lenses. I just don't experience this on my canon 50 1.8 and 70-200 2.8 Apologies to the OP if it seemed like I'm barging on your thread. 5D Mark II | 5Dc |17-40 | 24-105 | 70-200 F2.8 IS | Sigma 50mm 1.4 | 580EX
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LVMoose Moose gets blamed for everything.  More info |
snake0ape Goldmember  More info | Jul 09, 2014 11:15 | #18 I have both. Once both lens have been micro-adjusted for focus, I have no focus issues on my 5Diii. IMO, both lens have high keeper rates and I am quite satisfied with both. 5Diii | 50D | 8-15L 4| 16-35L 2.8 II| 24-70L 2.8 II | 70-200L 2.8 IS II |Tamy 150-600 | Σ35Art 1.4 | 40 2.8 | Σ50Art 1.4 | 85L 1.2 II | 100 2.8 Macro | Helios 44-3 58mm f2.0 |Helios 40-1 85mm f1.5 | 1.4x & 2x teleconverters
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mystik610 Cream of the Crop  More info | Jul 09, 2014 16:24 | #19 Focus is definitely more consistent on my 24-70II than my 35A….this, however, is more a testament to how good the 24-70 II’s AF system is. The 24-70II utilizes a closed-loop AF system, which when paired with the 5DIII, allows it to focus more accurately. focalpointsphoto.com
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accord Member 157 posts Likes: 1 Joined Mar 2005 Location: Hong Kong SAR More info | Jul 09, 2014 23:52 | #20 The 24-70II utilizes a closed-loop AF system, which when paired with the 5DIII, allows it to focus more accurately. Do you have a reference, for my learning. What other Canon equipments have such capability?
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Jul 12, 2014 21:34 | #21 accord wrote in post #17022193 Do you have a reference, for my learning. What other Canon equipments have such capability? ditto, would like to know too. I'm using a 6D here, so it probably has what you're making reference to?
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mystik610 Cream of the Crop More info | Jul 12, 2014 22:10 | #22 accord wrote in post #17022193 Do you have a reference, for my learning. What other Canon equipments have such capability? Good read on the subject: focalpointsphoto.com
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Jul 14, 2014 01:24 | #23 mystik610 wrote in post #17027975 Good read on the subject: http://www.lensrentals.com …ity-part-3b-canon-cameras Looks like it's the newer lenses released after 2012 or so An excellent arti le, I wonder if the 6D also has a newer AF system. R5, RF 85 f1.2L, RF 50 f1.8, 6D, EF16-35 F4L IS, EF50 f1.4, EF 100 f2.8 L Macro IS
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mystik610 Cream of the Crop More info | Jul 14, 2014 06:30 | #24 strobe monkey wrote in post #17030367 An excellent arti le, I wonder if the 6D also has a newer AF system. Looks like its only the 1DX and the 5DIII (which inherits the 1D's AF system) focalpointsphoto.com
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