Projection Lens Data - NEC iS15-2K User Manual

Cinema Projector: User Manual
iS15-2K

Projection lens data

part numbers
throw ratio
full DMD image width
throw distance
lens shift vertical
(vs DMD height)
lens shift horizontal
(vs DMD width)
Aperture
Max object field size
Effective focal length
Distortion
Transmission
Mechanical
Lens extension*
Length
Maximum diameter
* 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).
L2K-14ZG L2K-18ZG
102-933 102-934
01165056 01165057
1.45 - 1.8 :1 zoom 1.8 - 2.4 :1 zoom
3 - 25m 2 - 19m
(9 - 82ft) (7 - 62ft)
5 - 45m 5 - 45m
(16 - 148ft) (16 - 148ft)
± 282 ± 282
± 0.26H ± 0.26H
± 172 ± 172
± 0.085W ± 0.085W
F/2.5 F/2.5
36.0mm dia 36.0mm dia
40.71 - 50.89mm 50.72 - 62.12mm
((1.6 - 2.0in) (2 - 2.5in)
<1.5% <1.5%
>88% avg >88%
109mm 97mm
(4.3in) (3.8in)
381mm 368.4mm
(15in) (14.5in)
139mm 139mm
5.47in) (5.47in)
L2K-22ZG
102-935
01165058
2.2 - 3.0 :1 zoom
2 - 15m
(5 - 49ft)
2.2m - 6.9m
(7.4 - 22.6ft)
± 282
± 0.26H
± 172
± 0.085W
F/2.5
36.0mm dia
62.35 - 84.79mm
(2.46 - 3.34in)
<1.5%
>88% avg
53mm
(2.1in)
324.9mm
(12.8in)
139mm
(5.47in)
lens extension,
measured from front
of corner post
page 6.9
6. Appendix
L2K-30ZG
102-936
01165059
3.0 - 4.3 :1 zoom
1 - 11m
(4 - 34ft)
5 - 45m
(16 - 148ft)
± 282
± 0.26H
± 172
± 0.085W
F/2.5
36.0mm dia
84.0 - 120.5mm
(3.31 - 4.74in)
<1.5%
>88% avg
98mm
(3.9in)
370.8mm
(14.6in)
139mm
(5.47in)