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Wide-angle IR Lens
for 1/3" CCD Camera
VA-13FG04IR
Wide-angle IR Lens
for 1/3" CCD Camera
VA-13FG06IR
Wide-angle IR Lens
for 1/3" CCD Camera
VA-13FG08IR
Super Wide-angle IR Lens for
1/3" CCD Camera
VA-13FG28IR
1.3m
1.0m
W
H
W
H
W
H
W
H
3.9m
2.9m
6.4m
4.8m
10m
8m
1
m
3
m
5
m
8
m
10
m
13m
W
10m
H
9m
W
7m
H
4.5m
W
3m
H
20
m
26m
W
19m
H
18m
W
14m
H
9m
W
7m
H
30
m
39m
W
29m
H
27m
W
20m
H
14m
W
10m
H
50
m
64m
W
48m
H
45m
W
34m
H
23m
W
17m
H
Distance between lens and subject
0.9m
0.7m
W
H
W
H
W
H
W
H
W
H
W
H
W
H
W
H
0.45m
0.34m
2.7m
2.0m
1.4m
1.0m
4.5m
3.4m
2.3m
1.7m
7.2m
5.4m
3.6m
2.7m
100m
171m
W
129m
H
120m
W
90m
H
6m
W
4.5m
H
12m
W
9m
H
18m
W
13.5m
H
30m
W
22.5m
H
0.6m
0.45m
W
H
W
H
W
H
W
H
1.8m
1.35m
3m
2.25m
4.8m
3.6m
60m
W
45m
H
60m
W
45m
H
W
H
W
H
W
H
W
H
W
H
W
H
W
H
W
H
0.09m
0.07m
0.06m
0.04m
0.28m
0.21m
0.19m
0.13m
0.47m
0.35m
0.31m
0.23m
0.76m
0.56m
0.50m
0.37m
0.95m
W
0.71m
H
0.62m
W
0.46m
H
1.9m
W
1.4m
H
1.2m
W
0.93
m
H
2.8m
W
2.1m
H
1.9m
W
1.4m
H
4.7m
W
3.5m
H
3.1m
W
2.3m
H
9.5m
W
7.1m
H
6.2m
W
4.7m
H
Wide angle f = 4 mm Wide angle f = 6 mm Standard f = 8 mm Telephotographic f = 38 mmSuper wide angle f = 2.8 mm
f = 58 mm
VA-13FG28IR VA-13FG04IR VA-13FG06IR VA-13FG08IR
VA-13VG308AS
VA-13VG550T-LY
*Nearest distance: 1.0 m Wide 0.3 m
Image Range at a Glance
lens for 1/4" CCD camera
VA-13VG2811ASIR
VA-13VG308ASIR
Application
Mounting system
EE AMP
Focal length
Max. caliber rate
Horizontal shooting angle
Vertical shooting angle
Nearest distance
Iris connecting plug
External dimensions
Weight (approx.)
1/3" CCD camera
CS mount
not equipped
f = 4.0 mm
F1.2
1/3" = 65.6°, 1/4"= 49.7°
1/3" = 49.7°, 1/4"= 37.4°
0.2 m
4-pin
34(W) x 45.7(H) x 35.4(D) mm
40 g [1.4 oz.]
1/3" CCD camera
CS mount
not equipped
f = 6.0 mm
F1.2
1/3" = 46.5°, 1/4"= 34.6°
1/3" = 34.6°, 1/4"= 25.9°
0.2 m
4-pin
34(W) x 45.7(H) x 35.4(D) mm
44 g [1.6 oz.]
1/3" CCD camera
CS mount
not equipped
f = 8 mm
F1.2
1/3" = 46.5°, 1/4"= 34.6°
1/3" = 34.6°, 1/4"= 25.9°
0.2 m
4-pin
34(W) x 45.7(H) x 35.4(D) mm
44 g [1.6 oz.]
Example:
For a lens of F1.2,
use the value of 1.0 lx
which is obtained by
actual measurement.
When using a lens of F1.4:
1.0 x = 1.4 lx
( )
1.2
1.4
2
When using a lens of F1.6:
1.0 x = 1.8 lx
( )
1.2
1.6
2
F1.2, 50IRE
1.0 lx
F1.2, 20IRE
For the comparison of the minimum subject illumination:
F
=
f
D
Standard minimum
subject illumination
Target F value
Lens F value used for measurement
()
2
x
50
20
1.0 x =0.4 lx
50
20
1.4 x =0.56 lx
( )
1.2
1.4
2
1.0 x =1.4 lx
50
20
1.8 x =0.56 lx
( )
1.2
1.6
2
1.0 x =1.8 lx
The amount of light passed through a lens is expressed by a value
called “aperture value” (F value or F number). When the aperture is
fully open (maximum aperture), the maximum amount of light is
passed through the lens. This is the lens’ brightness and is
expressed by the “maximum aperture F value”. The maximum
aperture F value is obtained by dividing the focal length with the lens
diameter (D). The capital letter “F” is used to distinguish it from “f”,
which means the focal length.
SANYO defines the minimum
subject illumination to be the
level that produces the signal
level of 50 IRE in measuring
camera performance.
Always confirm the F value and the IRE level used in the
measurement. If the F value and the IRE level do not
match, then convert the values in camera specifications
using the following method.
Formula for determining the minimum subject
illumination for different F value
F1.4,
20IRE
F1.4,
50IRE
F1.6,
20IRE
F1.6,
50IRE
1/3" CCD camera
CS mount
not equipped
f = 2.8 mm
F1.2
1/3" = 93.2°, 1/4"= 70.7°
1/3" = 70.7°, 1/4"= 53.4°
0.2 m
4-pin
34(W) x 45.7(H) x 35.4(D) mm
44 g [1.6 oz.]
Technical Notes
31
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