Review on Ultra Wide Angle Zoom Lens for SLR Cameras - Canon EF 17-40mm f/4L USM by Alvin ᠌

I really wanted to, I took it, I’m happy, but now I want a bigger hole (16-35 2.8) I recently compared it with 28 1.8 XA in it a lot, but at 17-40 I just don’t, I felt the quality of the El series, that is, it turns out no worse than fixes :) Some pros: zoom, focus inside! a wonderful thing, it doesn’t smear, there are no backlashes, you can feel the quality in your hand Different cons: we can fill up a little at full frame, but it's 100 degrees! maybe a little dark, but these are technical characteristics