Thanks!
I have been in this hobby for ~4 years and this is the 3rd UWA which I am using.
I am actually very new to the FE 16-35 and still getting used to it.
But for sure I can say, this little lens totally blows my previous 10-22 and 16-35L II out of the water, in terms of resolution and sharpness.
The FE 16-35 is sharp, edge to edge, even at f4. This is one aspect which my previous lenses cannot do, the bare minimum I could do then, was f5.6 and it was mediocre.
Flare resistance is about the same for all 3 lenses which is great, prolly the 10-22 will edge out just a bit.
AF wise, the 2 Canon lenses are the winners, perhaps due the combined usage with PDAF from the DSLR(vs the slower CDAF on the A7R).
Since my predominant genre is land/cityscapes, AF is a non-issue to me as I normally will hyperfocus with the lens.
I have used the 16-35L II on my A7R via Metabones adapter and the L-glass is sharper and resolve better on the A7R than on my then-5DMK3. Canon sure did over-engineered the 16-35L II.
Well, the 2 Canon lenses are quite dated, therefore I guess it is normal for the Sony glass to top out in overall performance.
1 little complain about the FE 16-35 is the reverse external zoom. I really prefer the conventional manner, with 16mm being compact and 35mm being zoomed in physically. Hell, my 2 Canon lenses are all internal zooming.
So yeah, some views which I can share currently, until I use the lens through and through. Since the UWA focal length is my playground, I guess it's just a matter of time before I derive more findings!
Thank you!