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Technical Specifications
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
Lenses for Sensor Modules with 6MP Image Sensor
Focal Lengths of MOBOTIX Lenses
Focal lengths of MOBOTIX lenses are always given as compared to a 35mm camera.
For example, the MOBOTIX Super Wide-Angle lens L20-L23 has a nominal focal
length of 3.6mm. Converted to 35mm camera, this would be a lens with 20mm
or 23mm focal length, depending on whether it is combined with a 6MP or a 5MP
image sensor. Converting the focal lengths to 35mm camera as a known format
provides for better comparing the image formats and the angles of view of the dif
-
ferent lenses. Another benefit is that you can easily set a 35mm camera (analog or
digital) to the same focal length (Lxx) of the MOBOTIX lens to obtain the same angle
of view. This approach greatly facilitates lens selection.
Lenses 6MP
Sensors
L10 L20 L22 L32 L43 L65 L135 L270
Original image
(image format
4:3)
Focal length
(35mm equiv.)
10mm 20mm 22mm 32mm 43mm 65mm 135mm 270mm
Nominal focal
length
1.8mm 3.6mm 4mm 6mm 8mm 12mm 25mm 50mm
Aperture 2.0 1.8 1.8 1.8 1.8 1.8 1.8 2.5
Horiz. angle of
view
180° 105° 90° 60° 45° 31° 15° 8°
Vert. angle of
view
180° 77° 67° 45° 34° 23° 11° 6°
At 1m distance
Image width ∞ 2.6 2.0 1.2 0.8 0.6 0.3 0.1
Image height ∞ 1.6 1.3 0.8 0.6 0.4 0.2 0.1
At 5m distance
Image width ∞ 13.0 10.0 5.8 4.1 2.8 1.3 0.7
Image height ∞ 8.0 6.6 4.1 3.1 2.0 1.0 0.5
At 10m distance
Image width ∞ 26.1 20.0 11.5 8.3 5.5 2.6 1.3
Image height ∞ 15.9 13.2 8.3 6.1 4.1 1.9 1.0
At 20m distance
Image width ∞ 52.1 40.0 23.1 16.6 11.1 5.3 2.6
Image height ∞ 31.8 26.5 16.6 12.2 8.1 3.9 1.9
At 50m distance
Image width ∞ 130.3 100.0 57.7 41.4 27.7 13.2 6.6
Image height ∞ 79.5 66.2 41.4 30.6 20.3 9.6 4.8
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