gdanmitchell wrote:
In #8 the subject\'s front shoulder is in focus. This suggests that either the \"wrong\" AF point activated or that the lens front focuses. I\'m guessing the former. In some of the distant shots you may have the same AF point issue since there are many subjects in the frame that the AF system might have locked onto. You might want to try using a singe AF point only.
I didn\'t check the aperture you used, but the larger apertures produce an extremely thin depth of field - partly due to the small aperture but made more so by the longer focal length. This makes it quite difficult to get your subject in good focus, and if the subject is not a flat plane there will be OOF elements.
I don\'t know if this is the case for you, but I know it is for some who buy such lenses and for some who read forum posts about them... so I\'ll say it here. The biggest, baddest, and most expensive lens (prime or zoom) is not always the \"best\" lens for one\'s particular needs. Some buyers (and, again, this may be directed more to others who will read this thread than to you) make the mistake of buying the most expensive L lens or most expensive version of a lens family, assuming that it will be \"better.\" However, it often isn\'t the case at all that the \"betterness\" of said lenses will necessarily be a) relevant to their photography, or b) visible in their images, or c) not accompanied by certain other downsides.
For the majority of photographers - including very serious photographers - the f/1.8 non-L Canon 85mm prime is probably a better choice than this very expensive and very specialized lens.
Take care,
Dan
this lens does exhibit front focus in close up so I dialed in +8 MA to compensate, I understand the deep learning curve from the f/1.2L and willing to accept the slow AF and super thin DOF, just that I did not expect I would have more difficulty in further distance subject than close up, I would think it should have been the other way around because of the DOF factor... lol
Jul 02, 2010 at 01:13 PM
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