Epson's Middle-Throw #3 Zoom Lens (ELPLM14) is an interchangeable lens that works with the Pro L25000 Projector.
F Number: 3.41 - 5.11 Throw Ratio (200" Screen): 3.41 - 5.11 Lens Shift: V= +65%, H= +/-30%
https://epson.com/Accessories/Projector-Accessories/Middle-Throw-%233-Zoom-Lens-%28ELPLM14%29/p/V12H004M0E