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NEC NP4001 Video Projector - Focus, Zoom, Lens Shift Controls

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NEC NP4001 Video Projector - Focus, Zoom, Lens Shift Controls

NEC NP4001 Video Projector - Focus, Zoom, Lens Shift Controls

Photo (c) Robert Silva - Licensed to About.com
The NP4001 incorporates power zoom, power focus, and both power horizontal and vertical lens shift. This is very convenient as the user does not have to physically adjust the lens or mechanical levers to make critical lens adjustments. Think of it as car car with power steering and power windows. These controls are located on the top of the projector, towards the front. These controls are also duplicated on the wireless remote control, which will be shown later in this gallery.

Starting at the top of the photo, on the left side is the power focus adjustment. The power zoom control, on the right side of the photo, is used to adjust the size of the image on the screen. When setting up the projector, the user goes back and forth with both focus and zoom controls to obtain the optimum size and focus of the image on the screen.

Another type of adjustment featured, below the focus and zoom controls, is the Horizontal and Vertical Lens Shift control. This control enables the user to position the image properly on the screen. In others words if the top of the image is above or below the top border on the screen, the vertical lens shift adjustement can move the lens into proper position without having to physically tilt the projector. In addition, the horizontal lens shift control moves the image back and forth so that the left and right edges of the image match the left and right edges of the physical screen. Think of the lens shift controls as a "framing" tool.

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