Compatibility
 
¥ Fixed focal length lenses are available with a throw
ratio of 0.9, 1.2, 2.2, 3.3, 4.0, 5.0 or 7 times the screen
width.
¥ A variable focus lens is available with a throw ratio
between 1.5:1 and 3:1 or between 3:1 and 5.3:1. 
¥ These lenses can be used on flat screens up to 
15 m / 50 ft wide.
¥ A lock bolt secures the position of the lens.
¥ Other lenses will be available in the future as they
are developed.
¥ Detailed information concerning projector distances
can be found in the...