Come here to laugh at me, but I still think I am right.
You can downvote, or think I'm a noob that belongs to bronze and maybe you're right. BUT. I use locked camera since I play LoL (more than a year now) and I think it's the best. Unlocked camera is stupid as you have to move the camera yourself losing seconds to move the screen, losing the opportunity to actually do things, and then you lose the focus on your champ and then the game doesn't feel like any game at all because you have no perception of yourself into the game. Of course my argument is invalid, because all pro players use the unlocked one and they are who they are, but still, it's not right to use it I think or at least locked one is as much as good as the unlocked one. When I play, if something urges to be seen (and that's very rare, why would you see other parts of the map when you have a mini map?), but let's say if sometimes it happens that you must see it, press Y, go to the point while having indicated your direction or position BEFORE this, give a quick look and press Y again, and that's what I do. The only problem is botlane on red side, so I never go there if possible :D and I've tried to look for the semi-locked camera but I can't seem to find it. Free to insult me, I know this thread deserves it, but it's my opinion.
Also, I would be so glad if 5v5 map was horizontal like the 3v3 let's say, or at least why we cannot rotate the map as we want?