03-31-2012, 09:37 AM
[quote name='Yakim' timestamp='1333144965' post='17195']
See the [url="http://www.canonrumors.com/files/eos5dmkiii-im-c-en.pdf"]user manual[/url] p.79 to p.84.
While I must confess I'm disappointed to see such a big effect of the lens used on the AF system I'm amused to see the 50/1.8 in group A while the 800/5.6 is in group F and the 1200/5.6 in group G.
[/quote]
Well, this isn't really news. The usable AF points have always been dependent on the speed of the lens. As such I don't really spot any big surprises. The macro lenses may not fit in upon first view the effective aperture gets smaller and close focus distances.
Group F and H has probably more to do with optimization rather than original capabilities.
See the [url="http://www.canonrumors.com/files/eos5dmkiii-im-c-en.pdf"]user manual[/url] p.79 to p.84.
While I must confess I'm disappointed to see such a big effect of the lens used on the AF system I'm amused to see the 50/1.8 in group A while the 800/5.6 is in group F and the 1200/5.6 in group G.
[/quote]
Well, this isn't really news. The usable AF points have always been dependent on the speed of the lens. As such I don't really spot any big surprises. The macro lenses may not fit in upon first view the effective aperture gets smaller and close focus distances.
Group F and H has probably more to do with optimization rather than original capabilities.