Overcome the limitations of the standard lens in your LCD and DLP video projector which only works in mid-size rooms. The limited projection range of these lenses make them inadequate for many projection applications. Use a long throw lens to increase projection distance and move the projector farther from the screen. Delivering bright, sharp images at an affordable price, Navitar's NuView 378MCZ151 is a 184-314mm f/2.8 (7.25-12.38") high resolution long throw zoom lens that replaces the existing prime lens on the Eiki LC-W4 and LC-W5. This allows you to choose the projection distance and image size by simply rotating the lens.
Navitar 378MCZ151 Features:
Projects onto screens from 80 to 200" diagonal from 40.8 to 173-feet away
Distance to width ratio is 7.0-11.9:1