Primary Lens For Model Is8-2K - NEC iS8-2K Installation And Adjustment Manual

2-3-2. Primary Lens for Model iS8-2K

Optional Lenses
MODEL
L2K-14ZM
L2K-18ZM
L2K-22ZM
L2K-30ZM
Projected Images
The anamorphic lens works to magnify projected images horizontally when you use a wide screen for projection (SCOPE).
How to Calculate the Magnification of Primary Lens
SCOPE projection:
Primary lens magnification =
* Use 1x for anamorphic lens magnification if this lens is not in use.
VISTA/HDTV projection:
Primary lens magnification =
* Number of pixels per horizontal line: 1998 for VISTA; 1920 for HDTV
* Select a lens that meets the magnification requirement for both SCOPE and VISTA/HDTV screen types.
Magnifying power
1.45 - 1.8
1.8 - 2.4
2.2 - 3.0
3.0 - 4.3
Area magnified by anamorphic lens
HDTV
Projected area, 1920
VISTA
Projected area, 1998
Projected area, 2048
Screen width (W) ÷Anamorphic lens magnification
Screen width (W) ÷(2048 ÷ Number of pixels per horizontal line)
1080
1080
1080
Length of projection (L)
Length of projection (L)
Screen
15