Samsung BP59-00134G-01 - Manual (Page 12)

2-3 Installation and Connection
2-3 Leveling with Adjustable Feet
The projector can be adjusted to a height of up to 30 mm (about 12 °) from the reference point.
Depending on the position of the projector, Keystone distortion of the image may appear.
If <Auto Keystone> is set to <On>, any keystone will be automatically adjusted. If fine tuning is required after auto-
adjustment, tune using the <V-Keystone>.
To level the projector, turn the Adjustable Feet of the projector.