I've seen a lot of these wide-angle effects lately, and I really like hat effect. Is there anyone who can explain me how I can achieve this effect in GT5?
The lower focal lengths (Idealy 14mm-20ish mm) will have a wide angle effect. So get close, and zoom out as much as you can once you're in your camera.
I had originally planned to, but my sample images turned out poor, and so I thought "Meh, I'll do it another day", and still haven't gotten around to it yet. But I will lol.