Lens Types And Throw Distance - NEC NP-PX700W User Manual

Lens types and throw distance

unit = m
[PX750U]
Screen size
NP16FL
50"
60"
80"
100"
120"
150"
200"
240"
300"
TIP
Calculation of the throw distance from the screen size
NP16FL lens throw distance (m) = H × 0.8 : 0.8 m (min.) to 5.1 m (max.)
NP17ZL lens throw distance (m) = H × 1.3 to H × 1.8 : 1.3 m (min.) to 11.7 m (max.)
NP18ZL lens throw distance (m) = H × 1.7 to H × 2.3 : 1.8 m (min.) to 14.9 m (max.)
NP19ZL lens throw distance (m) = H × 2.2 to H × 3.7 : 2.4 m (min.) to 24.1 m (max.)
NP20ZL lens throw distance (m) = H × 3.6 to H × 5.4 : 3.8 m (min.) to 35.4 m (max.)
NP21ZL lens throw distance (m) = H × 5.3 to H × 8.3 : 5.6 m (min.) to 54.8 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 using the PX750U to project on a 150" screen using the NP18ZL lens:
According to the "Screen Size (for reference)" table (→ page 210), 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).
Projection range for the different lenses
[PX750U]
NP16FL :
50-300"
50-300"
NP17ZL : 1.3–11.7m
NP18ZL : 1.8–14.9m
NP17ZL
0.8 1.3 – 1.9
1.0 1.6 – 2.3
1.3 2.2 – 3.1
1.7 2.7 – 3.9
2.0 3.3 – 4.7
2.5 4.1 – 5.8
3.4 5.5 – 7.8
4.1 6.6 – 9.4
5.1 8.2 – 11.7
0.8–5.1m
50-300"
50-300"
NP19ZL : 2.4–24.1m
NP20ZL : 3.8–35.4m
Lens model name
NP18ZL NP19ZL
1.8 – 2.4 2.4 – 4.0
2.2 – 2.9 2.8 – 4.8
3.0 – 3.9 3.8 – 6.4
3.7 – 4.9 4.8 – 8.0
4.5 – 5.9 5.8 – 9.6
5.6 – 7.4 7.2 – 12.0
7.5 – 9.9 9.7 – 16.1
9.1 – 11.9 11.6 – 19.3
11.3 – 14.9 14.5 – 24.1
50-300"
NP21ZL : 5.6–54.8 m
211
9. Appendix
NP20ZL NP21ZL
3.8 – 5.8 5.6 – 8.9
4.6 – 7.0 6.8 – 10.7
6.2 – 9.3 9.1 – 14.4
7.7 – 11.7 11.5 – 18.1
9.3 – 14.1 13.8 – 21.7
11.7 – 17.6 17.4 – 27.3
15.6 – 23.5 23.3 – 36.4
18.8 – 28.3 28.0 – 43.8
23.5 – 35.4 35.0 – 54.8
50-300"