Sony SRX-T420 - Manual (Page 34)

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SRX-T420
The formula for calculating the projection distance from the screen diagonal length (D, unit: inch) is as
follows:
Type of lens Projection distance
calculation formula when
inputting a 4K
x 2K signal
Projection distance
calculation formula when
inputting a 16:9 signal Projection distance
calculation formula when
inputting a 4:3 signal
L (min) L (max) L (min) L (max) L (min) L (max)
LKRL-Z115 1.31 x D 1.59 x D 1.37 x D 1.67 x D 1.68 x D 2.05 x D
LKRL-Z117 1.49 x D 2.1 x D 1.57 x D 2.21 x D 1.93 x D 2.7 x D
LKRL-Z119 1.57 x D 2.59 x D 1.65 x D 2.72 x D 2.03 x D 3.33 x D
LKRL-Z122 1.94 x D 3.53 x D 2.03 x D 3.71 x D 2.5 x D 4.54 x D
LKRL-Z140 3.31 x D 6.25 x D 3.48 x D 6.57 x D 4.27 x D 8.03 x D
LKRL-Z111C 0.942 x D 1.51 x D 0.99 x D 1.59 x D 1.22 x D 1.94 x D
LKRL-Z114C 1.2 x D 1.75 x D 1.26 x D 1.84 x D 1.54 x D 2.26 x D
LKRL-Z116C 1.34 x D 2.03 x D 1.41 x D 2.14 x D 1.72 x D 2.62 x D
LKRL-90 0.793 x D 0.834 x D 1.02 x D
The projection distance (L) that is decided by the screen width (W) is as shown below.
For the projection distance charts of the optional lenses not mentioned below, refer to the mounting
instructions supplied with each lens.
Using the LKRL-Z115 projection lens
When projecting a 4096-pixel (4K x 2K) image at the maximum horizontal picture element
Unit: mm (inches)
W 4500 5000 6000 7000 8000 9000 10000 12000 14000 16000
(177 1/5) (196 6/7) (236 2/9) (275 3/5) (315) (354 1/3) (393 5/7) (472 4/9) (551 1/6) (630)
L (min) 6554 7295 8778 10261 11743 13226 14709 17674 20639 23605
(258) (287 2/9) (345 3/5) (404) (462 1/3) (520 5/7) (579) (695 5/6) (812 4/7) (929 1/3)
L (max) 8056 8964 10780 12596 14412 16228 18044 21676 25308 28940
(317 1/6) (353) (424 2/5) (496) (567 2/5) (638 8/9) (710 2/5) (853 2/5) (996 3/8) (1139 3/8)
H1 a) 2373 2637 3164 3691 4219 4746 5273 6328 7383 8438
(93 3/7) (103 4/5) (124 4/7) (145 1/3) (166) (186 6/7) (207 5/8) (249 1/7) (290 2/3) (332 1/5)
H2 b) 1883 2092 2510 2929 3347 3766 4184 5021 5858 6695
(74 1/8) (82 3/8) (98 5/6) (115 1/3) (131 7/9) (148 1/4) (164 3/4) (197 2/3) (230 5/8) (263 4/7)
mm:
L (min) = (W
_ 79.675) / 0.67446 L (max) = (W _ 63.762) / 0.55067
H1 = W x 0.52730 H2 = W x 0.41840
inch:
L (min) = (W
_ 3.1368) / 0.67446 L (max) = (W _ 2.5103) / 0.55067
H1 = W x 0.52730 H2 = W x 0.41840
a) Screen height when projecting a 4096 x 2160-pixel (4K single screen) image on the screen.
b) Screen height when projecting a 4096 x 1714-pixel (aspect ratio 2.39:1) image on the screen.