Optional Lens Guide
Product Details

Technical Specifications
Model
AL-TL128MA (standard)
Lens type
long throw
Focus
Powered
Zoom
1.41
Throw ratio
1.28-1.81
F#
4.18
f(mm)
18.7-26.5mm
Screen Size
100-700inch
Lens shift(Vertical)
±40%
Lens shift(Horizontal)
±90%
Weight
2.7Kg
Lens shift measurement
V=Δh/(1/2)h, H=Δw/(1/2)w

Lens distance calculation
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