JVC DLA-QX1G manual Projection Distance and Screen Size, Lens type Approximate projection distance

Installing the Projector (Cont.)

Projection Distance and Screen Size

The range of projection distances that can be focused depends on the lens unit (not supplied) to be used. When the aspect ratio of the screen is 4:3, the range is as follows and you need to install the projector within this range.

Lens type	Approximate projection distance
GL-MQ1010G	3.9 ft (1.2 m) to 25.9 ft	(7.9 m)
GL-MQ1015SG	5.6 ft (1.7 m) to 40.3 ft	(12.3 m)
GL-MQ1020ZG	26.2 ft (8.0 m) to 280.3 ft (85.5 m)
GL-MQ1023SZG	28.2 ft (8.6 m) to 276.1 ft (84.2 m)

The value for projection distance is a guide (reference). The projected image size may vary depending on the manufactur- ing tolerance of the projection lens.

Change of projection screen according to aspect ratio

Screen with 4 : 3 aspect ratio

Screen with 16 : 9 aspect ratio

•For detailed relation between projection distances and projection screen sizes, refer to Appendix. The relation for both 4:3 and 16:9 are listed there.

•When adjusting the screen size, use a 4:3 aspect-ration picture. (A 16:9 aspect-ration picture is projected, based on the width of a 4:3 aspect-ratio picture.)

•The diagonal length of a 16:9 aspect-ratio screen is about 91.8% that of a 4:3 aspect-ratio screen. This value is only a guide (reference).

•If the keystone is adjusted, the projected screen becomes smaller.

■Optional Lenses

This projector does not include a lens. You can select one of the optional lenses to adjust the projection distance. Please ask your dealer to buy and install the lens.

Lens model	Function
GL-MQ1010G	Powered focus for rear projection, short focal length lens (subject ratio 1:1), 0% influence.
GL-MQ1015SG	Powered focus, short focal length lens (subject ratio 1.5:1), manual vertical shift function pro-
	vided, 0% to ±50% influence.
GL-MQ1020ZG	Powered zoom/powered focus, long focal length lens (subject ratio 2.1:1 to 4.9:1), 0% influence.
GL-MQ1023SZG	Powered zoom/powered focus, long focal length lens (subject ratio 3:1 to 7:1), manual vertical
	shift function provided, 0% to ±50% influence.

ENGLISH

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