BALLSTON SPA — The lantern slide projector was during the late 1800s the precursor to projectors that showed moving pictures. And one village native carved out a handsome business and a place in local ...

For years, business professionals have been using digital projectors to give presentations from their laptop computers. Professional photographers and videographers, too, use digital projectors to ...

For years, business professionals have been using digital projectors to give presentations from their laptop computers. Professional photographers and videographers, too, use digital projectors to ...