Locking Camera rotation on less then 360 degrees

Hello,

I'm using the First Person Controller prefab asset. And i disabled it on the first person controller, so i'm only moving the camera and not turning the capsule.

But the camera can still rotate 360 degrees, even after setting the values to: MaximumX = 90 MinimumX = -90

i'm stumped, since i want the camera to rotate just 180 degrees.I already locked the cursor, but it's not working.