Originally Posted by Jackos
I'm no expert in photography, but I guess it's because you took a close shot. If you take pictures from more far away this won't be an issue anymore. If I remember correctly, this is an issue related to the small optical sensor.
I don't know if all phones nowadays suffer from this, but I'm sure the HTC One M7 did.
Usually the phone corrects this using software methods.
It's definitely no optical illusion, and Photoshop is also not quite the answer, as the distortion is quite irregular. I tried applying the lens distortion filter, but it won't come out right.
Straight lines at the left and right also slant towards the middle.
Small lens problem, yes. But that Galaxy Note 3 also has a small lens, and the problem there is far less pronounced. On top of that you get the blurriness in all the Z2 pictures.
I'm really quite disappointed. I sold the Z1 shortly after getting it for the same problems, I was optimistic that Sony had sorted the problem, but sadly that is not the case.