NEC NP901W user manual Adjustable ranges for 3D Reform are as follows

4. Convenient Features

The adjustable ranges for 3D Reform are as follows:

	Horizontal	Vertical
Cornerstone	Max. +/– 40° approx.	Max. +/– 30° approx.
Keystone

*The following are conditions under which the maximum angle is achieved:

• Image is projected in Wide (Zoom lever to the maximum)

NOTE:

•Even when the projector is turned on, the last used correction values are applied.

•Turning on the projector will reset the previous correction setting values and correct distortion anew if the projection angle is changed from the last use.

If the projection angle is the same as in the last use, the previous correction setting values are retained in the memory.

•The range of keystone correction is not the maximum tilt angle of projector.

NOTE: Using 3D Reform correction can cause the image to be slightly blurred because the correction is made electronically.

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