Samsung SP-A400B Owner's Instructions Manual page 19

Zoom Knob Focus Ring
You can adjust the size of image within zoom range by manipulating the
Zoom Knob.
Focus the picture on the screen using the Focus Ring.
If your product is installed at a location out of the specified projection
distance (refer to
be adjusted correctly.
Leveling with Adjustable Feet
For level placing of the projector, adjust the Adjustable Feet of the projector.
You may adjust the level of the projector up to 12 mm (average 3.4°) degrees.
Depending on the position of the projector, Keystone distortion of image may appear.
Screen Size and Projection Distance
Install the projector on a flat, even surface and level the projector using the adjustable feet to realize optimal picture quality. If
images are not clear, adjust them using the Zoom Knob or Focus Ring, or move the projector forward and backward.
Horizental
Screen size
(M:inch)
(X:mm)
10 218
20 436
30 653
40 871
50 1089
60 1307
70 1525
80 1742
90 1960
100 2178
110 2396
120 2614
130 2831
140 3049
150 3267
160 3485
170 3703
180 3920
190 4138
200 4356
210 4574
Screen Size and Projection Distance), the focus cannot
Vertical
(Y:mm)
131
261
392
523
653
784
915
1045
1176
1307
1438
1568
1699
1830
1960
2091
2222
2352
2483
2614
2744
Max Min
(Z:mm) (Z:mm)
392 326.7
784.1 653.4
1176.1 980.1
1568.2 1306.8
1960.2 1633.5
2352.3 1960.2
2744.3 2286.9
3136.4 2613.6
3528.4 2940.3
3920.5 3267
4312.5 3593.8
4704.5 3920.5
5096.6 4247.2
5488.6 4573.9
5880.7 4900.6
6272.7 5227.3
6664.8 5554
7056.8 5880.7
7448.9 6207.4
7840.9 6534.1
8233 6860.8
Offset
(Y':mm)
11.1
22.2
33.3
44.4
55.5
66.6
77.8
88.9
100
111.1
122.2
133.3
144.4
155.5
166.6
177.7
188.8
199.9
211.1
222.2
233.3