M14 Fixed Lenses - Mobotix M22M Manual

M22M Camera Manual Part 1
When installing an above-the-wall assembly, breaking out one of the four openings
in the base of the mount will provide for properly guiding the cable into the mount.

2.7.5 M14 Fixed Lenses

MOBOTIX offers five different lenses from Super Wide Angle (L22)
to Tele (L135). Since the M22M is backlight-proof, these lenses do
not require an auto iris. Without the iris as a mechanical compo-
nent, these glass lenses are extremely robust and maintenance-
free. The standard lens for the M22M Secure and IT models is the
Super Wide Angle lens with a
approx. 90°. Although the Super Wide Angle is a super wide-
angle lens, it shows very little distortion and delivers good image
quality, even when using the 4x zoom of the M22M. If a camera
with a Super Wide Angle lens has been mounted in the corner of
a room, the complete room is visible on the image.
MOBOTIX lens designations do not reflect the actual focal length of the
lenses, but the focal length (Lxx mm) converted to 35 mm camera for-
mat. 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 results in the MOBOTIX designation "L22" for
the Super Wide Angle lens.
Since the image sensors in the cameras have different sizes, convert-
ing to 35 mm camera as a known format provides for better compari-
son of the image format and the field of vision parameters of different
lenses. Another benefit is that you can easily set a 35 mm SLR camera
to the same focal length (Lxx) to obtain the same field of vision. This
approach greatly facilitates lens selection.
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • sales@mobotix.com • 31.1.2007
horizontal field of vision of
Note
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