Appendix; ❶ Throw Distance And Screen Size; Lens Types And Throw Distance - NEC NP-PH1400U User Manual

9. Appendix

❶ Throw distance and screen size
Six separate bayonet style lenses can be used on this projector. Refer to the information on this page and use a lens
suited for the installation environment (screen size and throw distance). For instructions on mounting the lens, see
page 167.
Each number provided in the table below means the throw distance between the lens surface and the screen.

Lens types and throw distance

unit = m
Screen size
NP25FL
70"
80"
100"
120"
150"
200"
240"
300"
400"
500"
600"
TIP
• Calculation of the throw distance from the screen size
NP25FL lens throw distance (m) = H × 0.67 : 1.1 m (min.) to 3.2 m (max.)
NP26ZL lens throw distance (m) = H × 1.35 to H × 1.84 : 2.8 m (min.) to 24.0 m (max.)
NP27ZL lens throw distance (m) = H × 1.84 to H × 2.54 : 4.0 m (min.) to 24.0 m (max.)
NP28ZL lens throw distance (m) = H × 2.62 to H × 4.20 : 9.0 m (min.) to 45.0 m (max.)
NP29ZL lens throw distance (m) = H × 4.21 to H × 6.96 : 12.0 m (min.) to 80.0 m (max.)
NP32ZL lens throw distance (m) = H × 0.9 to H × 1.1 : 1.33 m (min.) to 14.35 m (max.)
"H" (Horizontal) refers to the screen width.
* Figures differ by several % with the table above because the calculation is approximate.
Ex.: Throw distance when projecting on a 150" screen using the NP27ZL lens:
According to the "Screen Size (for reference)" table (→ page 221), H (screen width) = 323.1 cm.
The throw distance is 323.1 cm × 1.7 to 323.1 cm × 2.3 = 549.3 cm to 743.13 cm (because of the zoom lens).
• Using the NP28ZL lens will slightly change the image size. When using the NP28ZL lens to adjust the image size, adjust the focus
and then the zoom.
NP26ZL
— —
1.1 —
2.9 – 4.0
1.4
1.7 3.5 – 4.8
2.2 4.4 – 6.0
5.9 – 8.0
3.0
7.1 – 9.6
—
8.9 – 12.0
—
11.9 – 16.1
—
14.9 – 20.1
—
— —
Lens model name
NP27ZL NP28ZL
— —
— —
4.0 – 5.5 9.0
4.8 – 6.6 9.0 – 10.8
6.0 – 8.2 9.0 – 13.5
8.0 – 11.0 11.1 – 17.9
9.6 – 13.2 13.3 – 21.4
12.1 – 16.6 16.5 – 26.8
16.1 – 22.1 22.0 – 35.6
20.2 – 24.0 27.4 – 44.5
— —
219
NP29ZL NP32ZL
1.3 – 1.6
—
1.5 – 1.9
—
12.0 – 15.0 1.9 – 2.3
12.0 – 18.0 2.3 – 2.8
13.5 – 22.4 2.9 – 3.5
17.9 – 29.8 3.9 – 4.7
21.4 – 35.7 4.7 – 5.7
26.7 – 44.5 5.9 – 7.1
35.5 – 59.3 7.9 – 9.5
44.3 – 74.0 9.9 – 12.0
11.9 – 14.4
—