APS-C IMAGE QUALITY VS fULL fRAME AT TESTING

Started Feb 24, 2013 | Discussions thread
qianp2k Forum Pro • Posts: 10,350
Re: I can help.

Donald Duck wrote:

qianp2k wrote:

The EF-60 is much sharper than the comparable EF-100 macro, and even sharper than the newer and more expensive 100L. The 17-55 and the 15-85 are sharper than the 24-105 or the 16-35.

I don't own EF-S 60/2.8 macro so cannot tell. DXOMark shows 24-105L performs similarly on APS-C when compared to EF-S lenses 17-55 and 15-85. I don't own latter two EF-S lenses but own similar Sigma 17-50/2.8 OS that is actually a little sharper than 17-55/2.8 IS in most center area. In my tests, 24-105L and Simga 17-50/2.8 OS have about the similar sharpness on my 60D (that I cannot tell obvious difference) and 17-40L is a bit sharper. From what I read 16-35L is only better than 17-40L.

The difference between the 17-55 and the 24-105 is small but is there. But ... this is not the right comparison anymore in the context of optimized lenses. The 24-105 has a very different FL range.

A good comparison is the 17-55 and the 17-40/16-35. The EF-S zoom beats them both, especially near 35-40mm despite having a longer range.

Sorry that is not in my case.  I still have those test photos on a dollar bill indoor and some secne outdoor.  After I got Sigma 17-50/2.8 OS I tested against two EF zoom and that's what I found.  17-40L is the sharpest on my 60D when compared to Sigma 17-50/2.8 OS and 24-105L.  Latter two are the same while 17-40L edges out a little bit.  Maybe I got a good copy.  Anyway as I said EF lenses in generally are optimized on FF bodies.





-- hide signature --
Post (hide subjects) Posted by
MOD schmegg
MOD schmegg
MAC
MOD schmegg
MAC
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MAC
MAC
MAC
MOD schmegg
MOD schmegg
MAC
MOD schmegg
MAC
MOD schmegg
MAC
MOD schmegg
MOD schmegg
MOD schmegg
MOD schmegg
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MAC
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow