Da-Lite > What's Hot Data Vision Data Vision is a new optical coating for Da-Lite’s Polacoat® diffusion screens which is dark in appearance and produces a unity gain screen ideal for data projection. The special coating successfully rejects ambient light and maintains a high contrast level. Data Vision produces a half angle of 24 degrees.   For pricing information, please contact Media Fabricators, Inc. via e-mail at sales@mediafab.com or via telephone at 323 937 3344.