Your lens determines image sharpness, throw ratio, aspect ratio and maximum picture size. Fixed lenses are cheap and portable; zoom adds size flexibility; lens shift eases placement. Protect and clean ...

NEC has released the NC2500S digital cinema projector. The projector offers lens memory that simplifies displaying different types of content with different aspect ratios by enabling the operator to ...

Projection lenses play a prominent role in modern society. When combined with a projector, these lenses allow people to view two-dimensional images on a screen by magnifying them and throwing them ...