Epson’s Middle Throw Zoom Lens #1 (ELPLM06) is an interchangeable lens that works with Z10000U, Z9870U, Z9750U, Z11000W, Z9900W, Z9800W, Z11000 and Z9870 Projectors.
Throw ratio:
WUXGA: 2.68 – 4.10
WXGA: 2.64 – 4.03
XGA: 2.51 – 3.85
Screen Sizes: 60″ – 500″
Zoom Ratio: 1 – 1.5
Focal Length: 55.43mm – 83.3mm
F-Number: 1.81 – 2.4