How to choose a projection screen based on projector lumen?
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How to choose a projection screen based on projector lumen? Image from:http://itempage3.auction.co.kr/DetailView.aspx?itemno=C408164618 ●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○●○● The following are our recommended suggestions for matching projectors and screen. Since the data standards of projectors are different, the following data are only used...