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D12 Camera Manual Part 1
The focal lengths of MOBOTIX lenses do not reflect the actual focal
length of the lenses, but the focal length ( Lxx mm) converted to 35 mm
camera format. For example, the MOBOTIX Super Wide-Angle lens has
an actual focal length of 4 mm. This would be the equivalent of 22 mm
on a 35 mm camera and thus leads to the designation L22 for the
lens.
Since the image sensors in digital cameras have different sizes, con-
verting to 35 mm camera format provides for better comparing the im-
age format and field of vision parameters of different lenses. Another
benefit is that you can easily set a 35 mm camera (analog or digital) to
the same focal length ( Lxx ) to obtain the same field of vision. This ap-
proach greatly facilitates lens selection.
Lens Table
Order name
Original image
35mm equivalent
Focal length
F-Number
Image angle horizontally
Image angle vertically
Distance 1 m
• Image width
• Image height
Distance 5 m
• Image width
• Image height
Distance 10 m
• Image width
• Image height
Distance 20 m
• Image width
• Image height
Distance 50 m
• Image width
• Image height
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • sales@mobotix.com
Note
L22
L32
L43
22 mm
32 mm
43 mm
4 mm
6 mm
8 mm
2,0
2,0
2,0
90°
60°
45°
67°
45°
34°
m
m
m
2,0
1,1
0,8
1,3
0,8
0,6
m
m
m
10,0
5,7
4,1
6,6
4,1
3,0
m
m
m
20,0
11,5
8,2
13,3
8,2
6,1
m
m
m
40,0
23,0
16,4
26,6
16,4
12,2
m
m
m
100,0
57,5
41,0
66,0
41,0
30,5
L65
L135
65 mm
135 mm
12 mm
25 mm
2,0
2,5
31°
15°
23°
11°
m
m
0,5
0,3
0,4
0,2
m
m
2,7
1,3
2,0
1,0
m
m
5,5
2,6
4,0
1,9
m
m
11,0
5,2
8,0
3,8
m
m
27,5
13,0
20,0
9,5
17
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Focal lengths of
MOBOTIX lenses are al-
ways given as compared to
a 35 mm camera!
To determine the lens you
need, simply use a camera
with zoom lens to find a
matching MOBOTIX lens
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