I used to have a mirrorless Sony Alpha A6000 camera.
The problem I had with it was that, no matter how hard I tried to keep the center of my photos sharp, my photos always looked blurry in the peripherals.
To illustrate, here's an example -- zoom in & compare the left and right of the photo with the center:
I eventually sold the camera and got a Canon T5i, and I have not experienced this problem with it -- my photos turn out sharp everywhere with the T5i:
(Unfortunately, I didn't take photos of the same scenes with both, but trust me that I experienced this problem with practically every single one of my A6000 photos, and none of the T5i ones.)
Is this a known problem with the body or the stock lens? Or is it a problem with entry-level mirrorless cameras in general? Why does it seem hard to find any kind of information about this problem online?
The whole thing has been extremely surprising to me, because whenever I have searched online, the Sony A6000 has seemed to be universally regarded as a better camera than the Canon T5i, and I would never have expected its photos to turn out so comparatively awful. What's going on?