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page 6.6
6. Appendix Digital Projection LIGHTNING 35HD User Manual
Lens Data
103-350 103-351 102-451 102-676
throw ratio 1.0 :1 fixed 1.25 - 1.45 :1 zoom 1.45 - 1.8 :1 zoom 1.8 - 2.4 :1 zoom
full DMD image width 2.2m - 6.9m 3.5 - 31m 3 - 25m 2 - 19m
(7.4 - 22.6ft) (11 - 102ft) (9 - 82ft) (7 - 62ft)
throw distance 2.2m - 6.9m 5 - 45m 5 - 45m 5 - 45m
(7.4 - 22.6ft) (16 - 148ft) (16 - 148ft) (16 - 148ft)
lens shift vertical ± 400 pixels ± 540 ± 282 ± 282
(vs DMD height) ± 0.37H ± 0.5H ± 0.26H ± 0.26H
lens shift horizontal ± 256 ± 365 ± 172 ± 172
(vs DMD width) ± 0.125W ± 0.178W ± 0.085W ± 0.085W
Aperture F/2.5 F/2.5 F/2.5 F/2.5
Max object field size 38.04mm dia 36.0mm dia 36.0mm dia 36.0mm dia
Effective focal length 28.95mm 35.28 - 40.97mm 40.71 - 50.89mm 50.72 - 62.12mm
(1.14in) (1.39 - 1.61in) (1.6 - 2.0in) (2 - 2.5in)
Distortion <0.6% <1.5% <1.5% <1.5%
Transmission >85% avg. >88% avg >88% avg >88%
Mechanical
Lens extension* 185mm 161mm 109mm 97mm
(7.3in) (6.3in) (4.3in) (3.8in)
Length 457.5mm 433.6mm 381mm 368.4mm
(18.0in) (17.1in) (15in) (14.5in)
Maximum diameter 144.5mm 144.5mm 139mm 139mm
(5.69in) (5.69in) (5.47in) (5.47in)
* Lens extension is the distance from the outer end of the lens to the front of the projector. It is measured when the lens is
focussed at infinity and fully extended. At other focus settings, the extension could be up to 10mm less.
It is important for calculating throw distance accurately (see Useful lens calculations, in Section 2. Installation).
lens extension,
measured from front
of corner post