NEC NC2041L, Installation Manual

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31
Before Setting Up Your Projector
Option lenses
The lens units that can be attached to this projector are shown in the following table.
MODEL Magnifying
NC-50LS12Z 1.13–1.66
NC-50LS14Z 1.30–1.85
NC-50LS16Z 1.45–2.17
NC-50LS18Z 1.63–2.71
NC-50LS21Z 1.95–3.26
L2K-30ZM 2.71–3.89
Examples of selecting the lens unit
If the “projection distance (L) = 30 m, the screen width (W) = 15 m”:
SCOPE projection =
30m
= 2.0x
15m
VISTA (FLAT) projection =
30m
= 1.95x
15m × (4096 ÷ (1998 × 2))
HDTV projection =
30m
= 1.88x
15m × (4096 ÷ (1920 × 2))
Therefore, the following lens units, which satisfy the magnifications in all of the above projections, are selected.
• NC-50LS16Z
• NC-50LS18Z