Epson's Long-Throw Zoom #2 Lens (ELPLL10) is an interchangeable lens that works with the Pro L25000 Projector.
F Number: 2.1 - 2.6 Throw Ratio (200" Screen): 6.73 - 10.45 Lens Shift: V= +55%, H= +/-25%
https://epson.com/Accessories/Projector-Accessories/Long-Throw-Zoom-%232-Lens-%28ELPLL10%29-/p/V12H004L0A