Projection Distance Charts - Sony SRX-T420 Installation Manual

1-12. Projection Distance Charts

The alphabetical characters in this section indicate the following measurements:
W: Screen width (unit: mm)
D: Screen diagonal length (unit: inch)
L (min): Minimum distance between the center of lens and screen
L (max): Maximum distance between the center of lens and screen
H: Screen height (different from the aspect ratio of the projected image)
The distance between the lens and the screen varies depending on the attached lens, type of the input
signal or size of the projected image. Choose the most suitable distance (L) depending on the screen size
(W or D).
The formula for calculating the projection distance from the screen width (W, unit: mm) is as follows:
Type of lens Projection distance
calculation formula when
inputting a 4K x 2K signal
L (min)
1.48 x W
LKRL-Z115
1.69 x W
LKRL-Z117
1.78 x W
LKRL-Z119
2.19 x W
LKRL-Z122
3.75 x W
LKRL-Z140
1.07 x W
LKRL-Z111C
1.35 x W
LKRL-Z114C
1.51 x W
LKRL-Z116C
0.897 x W
LKRL-90
SRX-T420
Screen
Center of screen
L (Suitable distance)
Projection distance
calculation formula when
inputting a 16:9 signal
L (max) L (min)
1.8 x W 1.58 x W
2.38 x W 1.8 x W
2.93 x W 1.89 x W
3.99 x W 2.33 x W
7.07 x W 4 x W
1.71 x W 1.14 x W
1.98 x W 1.44 x W
2.3 x W 1.61 x W
0.957 x W
Center of lens
Projection distance
calculation formula when
inputting a 4:3 signal
L (max) L (min)
1.92 x W 2.1 x W
2.53 x W 2.41 x W
3.13 x W 2.53 x W
4.26 x W 3.12 x W
7.54 x W 5.34 x W
1.82 x W 1.52 x W
2.12 x W 1.93 x W
2.45 x W 2.15 x W
1.28 x W
L (max)
2.56 x W
3.38 x W
4.16 x W
5.68 x W
10 x W
2.43 x W
2.82 x W
3.27 x W
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