Sony VPL-FX30 Operating Instructions - Page 42
Projection Distance and Lens Shift Range
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Projection Distance and Lens Shift Range The projection distance refers to the distance between the front of the lens and the projected surface. Projection distance L Projected image Front of the lens The lens shift range represents the distance in percent (%) by which the lens can be shifted from the center of the projected image. The lens shift range is regarded as 0% when the point (A) in the illustration (point where a line drawn from the center of the lens and the projected image cross at right angles) is aligned with the center of the projected image and full width or full height of the projected image is regarded as 100%. Projected image Lens shift range 50% Center of the projected image Center of the lens VS + HS - Center of the lens HS + 50% A VS - Projected image Side of the projector Shaded region: Lens shift range Projected image Lens shift range 50% Center of the projected image Center of the lens 50% A Top of the projector VS +: VS -: HS +: HS -: Vertical lens shift range (up) [%] Vertical lens shift range (down) [%] Horizontal lens shift range (right) [%] Horizontal lens shift range (left) [%] 42 Projection Distance and Lens Shift Range