07-05-2012, 11:44 PM
[quote name='Youplaboum535' timestamp='1341495203' post='19330']
I agree, if you don't see any difference between phase AF and Liveview AF, you have no focusing problem.
You should check your lens for decentering.
Be aware that, there are sharp lenses and ... sharp lenses. If you compare the 8-16mm with, say, the Tokina 11-16mm on regular sized pictures (even full screen, HD screen only require 2 MPix), the 8-16mm will look much sharper because it is extremely contrasty.
If you look at 100% crops, the 11-16mm pictures will appear much cleaner. It depends on what you're looking for. <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
' />
From what I saw 8-16mm is very similar in "100% crops sharpness" to the Sigma 10-20mm f/4-5.6, but with a much better contrast, better colors, much better coating.
[/quote]
Right, don't think it's focus, and maybe my expectations are too high.
Thanks.
I agree, if you don't see any difference between phase AF and Liveview AF, you have no focusing problem.
You should check your lens for decentering.
Be aware that, there are sharp lenses and ... sharp lenses. If you compare the 8-16mm with, say, the Tokina 11-16mm on regular sized pictures (even full screen, HD screen only require 2 MPix), the 8-16mm will look much sharper because it is extremely contrasty.
If you look at 100% crops, the 11-16mm pictures will appear much cleaner. It depends on what you're looking for. <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
' />From what I saw 8-16mm is very similar in "100% crops sharpness" to the Sigma 10-20mm f/4-5.6, but with a much better contrast, better colors, much better coating.
[/quote]
Right, don't think it's focus, and maybe my expectations are too high.
Thanks.