User manual

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D22M Camera Manual Part 1
*L32 and L65 lenses are
not available for M12 cam-
eras
Focal lengths of MO-
BOTIX lenses are always
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
Lens Table
Order name
Original image
L22 L32* L43 L65* L135
35mm equivalent
Focal length
F-Number
Image angle horizontally
22mm
4mm
32mm
6mm
2.0
90°
2.0
60°
43mm
8mm
65mm
12mm
2.0
45°
2.0
31°
135mm
25mm
2.5
15°
Image angle vertically
Distance 1 m
• Image width
• Image height
67°
m
45°
m
2,0
1.3
1.1
0.8
Distance 5 m
• Image width
• Image height
Distance 10 m
m
10.0
m
5.7
6.6
m
4.1
m
34°
m
23°
m
0.8
0.6
0.5
0.4
11°
m
0.3
0.2
m
4.1
m
2.7
3.0
m
2.0
m
m
1.3
1.0
m
• Image width
• Image height
Distance 20 m
• Image width
20.0
13.3
11.5
8.2
m
40.0
m
23.0
• Image height
Distance 50 m
• Image width
• Image height
26.6
m
16.4
m
100.0
66.0
57.5
41.0
8.2
6.1
5.5
4.0
m
16.4
m
11.0
2.6
1.9
m
5.2
12.2
m
8.0
m
41.0
30.5
27.5
20.0
3.8
m
13.0
9.5
Note
The focal lengths of MOBOTIX lenses do not reflect the actual focal
length of the lenses, but the focal length (L
xx 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. This lens is thus called
L22 .
Since the image sensors in digital cameras have different sizes, con-
verting to 35mm camera as a known format provides for better com-
paring the image formats and the fields of vision of the 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 approach greatly facilitates lens selection.