06-18-2010, 09:00 PM
[quote name='Klaus' date='17 June 2010 - 07:39 PM' timestamp='1276767542' post='582']
Field curvature is not THAT unusual - we've seen it in a couple of lenses although few showed a behavior as extreme as the 24-70L.
As far as alternatives are concerned - well, that's not my turn actually. :-)
A 17-55/2.8 on a 7D has certainly better corners than the 24-70L on the 5D II.
The old 28-70L is also supposed to be better than the 24-70L.
[/quote]
Sorry, I meant to say even f/11 at 24mm is not* enough to get everything in focus on a 5D2.
My point earlier in relation to alternatives was actually that. There aren't many options. Of course, the Sigmas are there but I don't their their colour or AF performance can match the Canon. There are many people who walk in to shops and buy brandnew lenses and they won't find the said 28-70L. The 17-55 IS is a good lens and I had it before... while it's really sharp, the bokeh and colour leave much to be desired. Also since it's equivalent to a ~f/4 on a FF, it's not fair to compare it against the 24-70L without considering the 24-105L IS on the 5D as well. Again, my point is, for f/2.8 shooting in the 24-70 range, this lens isn't all that bad.
Field curvature is not THAT unusual - we've seen it in a couple of lenses although few showed a behavior as extreme as the 24-70L.
As far as alternatives are concerned - well, that's not my turn actually. :-)
A 17-55/2.8 on a 7D has certainly better corners than the 24-70L on the 5D II.
The old 28-70L is also supposed to be better than the 24-70L.
[/quote]
Sorry, I meant to say even f/11 at 24mm is not* enough to get everything in focus on a 5D2.
My point earlier in relation to alternatives was actually that. There aren't many options. Of course, the Sigmas are there but I don't their their colour or AF performance can match the Canon. There are many people who walk in to shops and buy brandnew lenses and they won't find the said 28-70L. The 17-55 IS is a good lens and I had it before... while it's really sharp, the bokeh and colour leave much to be desired. Also since it's equivalent to a ~f/4 on a FF, it's not fair to compare it against the 24-70L without considering the 24-105L IS on the 5D as well. Again, my point is, for f/2.8 shooting in the 24-70 range, this lens isn't all that bad.