&lt;b&gt;Multiple Lenses for Diverse Application&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;To support optimal projector installation and performance in a wide range of environment five types of optical lenses ranging from short-throw to long-throw lens are available. The all-glass optical lenses eliminate chromatic aberration and color flare for the utmost image quality. Users can maximize installation options and projection layout with a quick one-button release. Changing lenses is now simple and secure.