Digital Projection lightning series, User Manual

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D—17
Advanced User Information
ADVANCED
LBV00056; Revision C - 01/03/03
SXGA 2.0 - 2.5:1 Zoom Lens
BASIC PARAMETERS
Throw Ratio 1 2.0 - 2.5 : 1
Minimum Screen Distance 2 3 m (9.84 ft)
Maximum Screen Distance
2
25 m (82.02 ft)
Full Beam Angle 28.07° - 22.60°
Rising/Falling Front 3 ±512 pixels
Aperture F/3
Effective Focal Length 44.6 - 54.5 mm
Distortion 4 < 1.2%
Transmission > 85%
Centre MTF @ 33 lp/mm > 40%
Corner MTF @ 33 lp/mm > 30%
Maximum Object Radius 20.53 mm (0.81”)
MECHANICAL
Lens Extension 5 159 mm (6.26”)
Maximum Size 335.5 x 160 mm dia. (13.2” x 6.3”)
Notes
1 Full active area width.
2
Limits for specified performance. Does not include lens extension.
3 Specification indicates maximum possible lens shift. Actual lens shift obtainable during
operation will vary depending on projector model.
4 Measured at 540mm.
5
Distance from projector front panel to front of lens.