All the lenses require f/5.6 to “clean up”, and all the lenses show lateral chromatic aberration to varying degrees.
- The 14-24 is good from wide open, improving incrementally until f/8, but doesn't quite match the 16-35 or 17-35 in micro contrast in the f/5.6 - f/8 range.
- The 16-35 remains low in micro contrast from f/4 - f/5.6, it requires f/8 to “pop”. At f/8, the 16-35 is excellent, the best of the bunch, with excellent micro contrast.
- At f/4, the 17-35 delivers the best result. It peaks nicely at f/5.6, a result consistent with my years of past experience. But at f/8 the 16-35 comes on strong.
- The 24-70 never “cleans up”, retaining a slightly soft look at all apertures.
- The 24/2 is very low contrast and smeared until f/5.6, where it suddently “pops”, improving further to its peak at f/8.
- All the lenses show loss of contrast at f/11, though the 16-35 seems to hold up slightly better.
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