Samsung SP-L250W User Manual (user Manual) (ver.1.0) (English) - Page 17

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 Screen Size and Projection Distance), the focus cannot be adjusted correctly. Leveling with Adjustable Feet For level placing of the projector, adjust the Adjustable Feet of the projector. The projector can be adjusted to a height of up to 30 mm (about 12 °) from the reference point. Depending on the position of the projector, Keystone distortion of the image may appear. If a keystone occurs, adjust it using the V-Keystone function. 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. Screen size (M:inch) 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 Horizental (X:mm) 812.8 1016.0 1219.2 1422.4 1625.6 1828.8 2032.0 2235.2 2438.4 2641.6 2844.8 3048.0 3251.2 3454.4 3657.6 3860.8 4064.0 4267.2 4470.4 4673.6 4876.8 5080.0 5283.2 Vertical (Y:mm) 609.6 762.0 914.4 1066.8 1219.2 1371.6 1524.0 1676.4 1828.8 1981.2 2133.6 2286.0 2438.4 2590.8 2743.2 2895.6 3048.0 3200.4 3352.8 3505.2 3657.6 3810.0 3962.4 Max (Z:mm) 1376 1727 2078 2430 2781 3133 3484 3835 4187 4538 4889 5241 5592 5944 6295 6646 6998 7349 7701 8052 8403 8755 9106 Min (Z:mm) 1140 1433 1726 2020 2313 2606 2899 3192 3485 3778 4071 4364 4657 4950 5243 5536 5829 6122 6415 6708 7001 7294 7587 Offset (Y':mm) 102 127 152 178 203 229 254 279 305 330 356 381 406 432 457 483 508 533 559 584 610 635 660