204
9. Appendix
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
154
.
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
Lens model name
NP16FL
NP17ZL
NP18ZL
NP19ZL
NP20ZL
NP21ZL
50"
0.8
1.3 – 1.9
1.8 – 2.4
2.4 – 4.0
3.8 – 5.8
5.6 – 8.9
60"
1.0
1.6 – 2.3
2.2 – 2.9
2.8 – 4.8
4.6 – 7.0
6.8 – 10.7
80"
1.3
2.2 – 3.1
3.0 – 3.9
3.8 – 6.4
6.2 – 9.3
9.1 – 14.4
100"
1.7
2.7 – 3.9
3.7 – 4.9
4.8 – 8.0
7.7 – 11.7
11.5 – 18.1
120"
2.0
3.3 – 4.7
4.5 – 5.9
5.8 – 9.6
9.3 – 14.1
13.8 – 21.7
150"
2.5
4.1 – 5.8
5.6 – 7.4
7.2 – 12.0
11.7 – 17.6
17.4 – 27.3
200"
3.4
5.5 – 7.8
7.5 – 9.9
9.7 – 16.1
15.6 – 23.5
23.3 – 36.4
240"
4.1
6.6 – 9.4
9.1 – 11.9
11.6 – 19.3
18.8 – 28.3
28.0 – 43.8
300"
5.1
8.2 – 11.7
11.3 – 14.9
14.5 – 24.1
23.5 – 35.4
35.0 – 54.8
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 projecting on a 150" screen using the NP18ZL lens:
According to the “Screen Size (for reference)” table (
→
page
20
6
), 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).
