Optoma is proud to announce today two new projectors, the ES521 and EX521. Both projectors share a 4500:1 contrast ratio, DLP display technology, and a 5 year warranty. The ES521 is the brighter proje... »read more
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Optoma is proud to announce today two new projectors, the ES521 and EX521. Both projectors share a 4500:1 contrast ratio, DLP display technology, and a 5 year warranty. The ES521 is the brighter proje... »read more
More at: About Projectors Add additional source
Filed in: ProjectorsOptomaES521EX521