Optoma HD72 - Adjusting Zoom, Focus, and Image Size

Installation
16
L
H'
H(1280X768)
A
B(1280X768)
W0 (1280X768)
W1 (1024X768)
D(1280X768)
Focus Ring
Zoom Lever
Adjusting the Projector’s Zoom / Focus
Turn the Zoom Lever to zoom in or zoom out. To focus
the image, turn the focus ring until you see a clear image.
The projector will focus at distances from 4.9 to 39.4 feet
(1.5 to 12.0 meters) and the projection screen size from
0.92m~8.857m (36”~349”) at 16:10 mode with mechanical
travel.
Adjusting Projection Image Size
Side View Front View
Throw Ratio (TR)=1.96 as Wide mode
A=6.52°
B
(1280x768)=25.54°
W
0
(1280x768)=L/R
H'=L X tan(A) W
1
(1024x768)=W
0
(1280x768) X 0.8
H (1280x768)=W
0
(1280x768) X 0.86 H (1024x768)=W
1
(1024x768) X 0.75
Display Format A B
L
(cm)
W
(cm)
H
(cm)
H’
(cm)
D
(cm)
D’
(in)
16:10 (1280x768) 6.52 25.54 256 130.68 78.41 29.01 152.40 60.00
4:3 (1024x768) 6.52 25.54 256 104.52 78.41 29.01 130.66 51.44
Projection Distance (M) 2.0 2.5 3.0 3.5 4.0 5.0 6.0
Screen Size 16:10
(inch)
Max 58.8 73.5 88.2 102.8 117.5 146.9 176.3
Min 48.9 61.1 73.3 85.5 97.7 122.2 146.6
Screen Size 4:3
(inch)
Max 47.02 55.77 70.53 82.28 94.04 117.55 141.06
Min 39.48 49.35 59.21 69.08 78.95 98.69 118.43