S
P
E
C
F
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L
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PT-
FW430
LCD Projector
As of March 2011
SFL11M005-1
7 / 1 4
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) × 0.0289 – 0.046
maximum
L (m) = (diagonal screen size in inches) × 0.0576 – 0.061
Aspect ratio 16:9
minimum
L (m) = (diagonal screen size in inches) × 0.0297 – 0.045
maximum
L (m) = (diagonal screen size in inches) × 0.0592 – 0.061
NOTE:
Distances calculated with the above equations will include a slight error.
NOTE:
• The value for H (the height from the edge of the screen to the centre of the lens) is the value when the horizontal optical axis shift function is
not used. The value decreases when the horizontal optical axis shift function is used. For details, see Shift range on page 8.
• The value for L (distance to screen) varies slightly depending on the zoom lens characteristics.
• At the shortest projection distance, 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.
0.84 m
1.02 m
1.27 m
1.52 m
1.78 m
2.03 m
2.29 m
2.54 m
3.05 m
3.81 m
5.08 m
6.35 m
7.62 m
–
1.2
1.5
1.7
2.0
2.3
2.6
2.9
3.5
4.4
5.9
7.4
8.9
1.9
2.3
2.9
3.5
4.1
4.7
5.3
5.9
7.1
8.8
11.8
14.7
17.7
-0.02
-0.03
-0.04
-0.05
-0.06
-0.07
-0.08
-0.08
-0.10
-0.13
-0.17
-0.22
-0.26
0.44
0.53
0.66
0.80
0.93
1.06
1.20
1.33
1.60
2.00
2.66
3.33
4.00
–
–
–
–
–
–
–
–
–
–
–
–
–
33˝
40˝
50˝
60˝
70˝
80˝
90˝
100˝
120˝
150˝
200˝
250˝
300˝
/
/
/
/
/
/
/
/
/
/
/
/
/
(–)
(3.8)
(4.7)
(5.7)
(6.7)
(7.6)
(8.6)
(9.6)
(11.5)
(14.5)
(19.3)
(24.2)
(29.1)
(6.2)
(7.6)
(9.5)
(11.5)
(13.4)
(15.3)
(17.3)
(19.2)
(23.1)
(28.9)
(38.6)
(48.4)
(58.1)
(-0.1
(-0.1
(-0.1
(-0.1
(-0.2
(-0.2
(-0.2
(-0.2
(-0.3
(-0.4
(-0.6
(-0.7
(-0.9
1.5)
1.8)
2.2)
2.6)
3.1)
3.5)
4.0)
4.4)
5.3)
6.6)
8.8)
11.0)
13.2)
–
–
–
–
–
–
–
–
–
–
–
–
–
Projection size
[diagonal]
Projection distance [L]
Min [wide]
Max [telephoto]
Height from the edge of screen
to center of lens [ H ]
Projection distance for 16:9 aspect ratio screen
unit: meters (feet)
