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Keystone Correction - when the projector is not positioned properly, the image may appears distorted at an angle. The keystone correction feature adjusts for distortion of an image at a certain angle.
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Lamp Life - refers to how long the lamp can be used, till it starts to become dimmer for adequate use. The life expectancy of the lamp varies from 40-70 hrs on low end to as many as 4000 hours.
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Projection Distance - how far you place the projector from the screen (measured in feet), and still view a clear image.
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Loop-through – If you don't want to turn your back to the audience while making a presentation, you can attach another device such as monitor to be projector. You can view the projected image on the monitor instead of turning to the slides time and again during presentation.
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Zoom - allow for the adjustment of the image without the need to move the projector physically. |
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