What are the projector characteristics I should look for? In order of decreasing importance (personal preference).
• The projectors native resolution. In pixels this will most likely be one of the following 1024×768 (XGA), 1280×1024 (SXGA, less common now), 1400×1050 (SXGA+), 1920×1080 (HD). • The degree to which the projector will project “nothing”, in other words black. An indication of this is given by the contrast ratio of the projector but this is an attribute often abused by manufacturers, with poor standards on how it is calculated. Ideally one is looking for rating above 2000:1. This is often low for LCD projectors. • The screen door effect, that is, the width of the gaps between pixel elements. This is most often a problem with LCD projectors. • Colour quality and colour space. This is a very hard attributed to judge without direct side-by-side access to the projectors and some experience adjusting their colour controls. For those running Apple Macs the built in colour calibration can go a long way towards improving the result. • Brightness.
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