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Data to Video, Day to Night – the EP1690 is Your All-Around Digital Display Device The Optoma EP1690 is a native widescreen digital projector that delivers performance for today’s laptops, the latest DVDs and high-definition content. Featuring a resolution of 1280 x 768, the EP1690 offers amazingly bright picture quality with 2500 lumens and a 2500:1 contrast ratio.