Replacement Lens Type B1 (Short Zoom)

Focal Length: 21.5 - 28.7 F Number: 2 Zoom Ratio: 1.2x Zoom and Focus Adjustment: Motorized Lens Shift Range: Vertical: +/-13%, Horizontal: +/-5% Projection Ratio: 0.84 - 1.02 Throw Distance: 35.4" - 433" (0.9 - 11m) Projection Image Size (Diagonal): 50 – 500 inch