The 121-114107-01 3.6 to 6.1/2.8 to 4.9 Long Zoom Lens from Christie is compatible with
LW401
LW551i
LWU421
LWU501i
LX501
LX601i projectors.
It provides a 3.6 to 6.1:1 throw ratio
Compatible with the company's D12HD-H and D12WU-H projectors
Provides a throw ratio of 1.02 to 1.36:1, allowing the distance between the projector and the screen to be approximately 1.02 to 1.36x...