JVC DLA-M4000LU DLA-M4000LU User instruction manual (1.1MB) - Page 18
Projection Distances and Screen Sizes
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Installing the Projector (Cont.) Projection Distances and Screen Sizes Lenses that can be used are a 3 : 1 ~ 7 : 1 zoom lens and a 1.5 : 1 fixed-focus lens. With a zoom lens used, you have a wider latitude in selecting projection distance and installation space than with a fixed lens. For how to install the lens, consult the dealer who installed and adjusted your projector or service center. Relationship of screen size vs. projection distance Screen Size (inch) WIDE 3:1 600 500 400 Fixed-Focus Lens 300 1.5 : 1 200 TELE 7:1 Zoom Lens 100 Projection Distance (m) 0 5 10 15 20 25 30 35 40 45 In the shaded areas in the above graph, the projected image may be partially distorted or missed out depending on the distance between the projector and the screen. To project an image with no image distortion or missing, we recommend you to use the projector in the areas defined with solid lines in the graph. Adjustable range of the lens Lens GL-M4023SZ zoom lens Screen Size (Type) 80 - 300 (80 - 600) Projection Distance (m) 5.06 - 18.65 (5.06 - 37.19) 60 - 200 (60 - 300) 8.65 - 28.56 (8.65 - 42.79) GL-M4015S fixed-focus lens 69 - 208 (65 - 250) 2.09 - 6.50 (1.97 - 7.83) The numbers in ( ) represent the minimum to maximum adjustable range. Remarks 3:1 wide 7:1 tele -------- 18