Here is what info I could find.:
The DX3351 offers great features and performance combined with great installation flexibility. The 6,000 ANSI lumens make it bright enough for larger screens, and the wide screen XGA native image resolution ensures that your content will be delivered with fidelity and sufficient detail for a wide range of applications. The 1,3-2,2:1 Throw Ratio makes it possible to install the projector in a wide range of distances, making installation planning easier whether you replace an older projector or making a new installation. The 1,7x zoom range and horizontal and vertical lens shift gives further flexibility when installing the projector. Feauturing 3D and a extensive in/output panel ensures the projector is suited for retrofit as well as new installations.