S
P
E
C
F
I
L
E
PT-
RW430K
/
RW430W
DLP
™
Projectors
As of December 2012
SFD12M012
6 / 1 3
Calculation of the projection distance
For a screen size different from the above, use the equation below to calculate the projection distance.
Aspect ratio 16:10
minimum
L (m) = (diagonal screen size in inches) × 0.0336 – 0.0542
maximum
L (m) = (diagonal screen size in inches) × 0.0670 – 0.0407
Aspect ratio 16:9
minimum
L (m) = (diagonal screen size in inches) × 0.0346 – 0.0542
maximum
L (m) = (diagonal screen size in inches) × 0.0688 – 0.0407
NOTE:
Distances calculated with the above equations will include a slight error.
1.02
1.27
1.52
1.78
2.03
2.29
2.54
3.05
3.81
5.08
6.35
7.62
1.3
1.7
2.0
2.4
2.7
3.1
3.4
4.1
5.1
6.9
8.6
10.3
2.7
3.4
4.1
4.8
5.5
6.2
6.8
8.2
10.3
13.7
17.2
20.6
-0.05
-0.06
-0.08
-0.09
-0.10
-0.11
-0.13
-0.15
-0.19
-0.25
-0.31
-0.37
0.48
0.60
0.71
0.83
0.95
1.07
1.19
1.43
1.79
2.38
2.98
3.57
−
−
−
−
−
−
−
−
−
−
−
−
40
50
60
70
80
90
100
120
150
200
250
300
/
/
/
/
/
/
/
/
/
/
/
/
(4.4)
(5.5)
(6.6)
(7.8)
(8.9)
(10.0)
(11.2)
(13.5)
(16.9)
(22.5)
(28.2)
(33.9)
(8.9)
(11.2)
(13.4)
(15.7)
(17.9)
(20.2)
(22.4)
(27.0)
(33.7)
(45.0)
(56.3)
(67.6)
(-0.2
(-0.2
(-0.2
(-0.3
(-0.3
(-0.4
(-0.4
(-0.5
(-0.6
(-0.8
(-1.0
(-1.2
1.6)
2.0)
2.3)
2.7)
3.1)
3.5)
3.9)
4.7)
5.9)
7.8)
9.8)
11.7)
−
−
−
−
−
−
−
−
−
−
−
−
Projection size
[diagonal]
[m]
[in]
Projection distance [L]
Min [wide]
Max [telephoto]
P
Height from the edge of screen
to center of lens [ H ]
Projection distance for 16:9 aspect ratio screen
unit: meters (feet)
NOTE:
• The value for L (distance to screen) varies slightly within ±5% depending on the zoom lens characteristics.
• The zoom lens characteristics may cause slight image distortion.
• When vertical keystone correction is used, the image is corrected in the direction that reduces its projected size.
• The brightness varies depending on the zoom setting.
