Mobotix security camera lens names are specified by their 35mm equivalents, not by the actual focal length.  The Mobotix website reads:

“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. This lens is thus called L22.

Since the image sensors in digital cameras have different sizes, converting to 35 mm camera as a known format provides for better comparing 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.”

Below is a table that aids in lens selection.

Mobotix Lens Table (click on thumbnail to enlarge)
Lens –>	L22	L32	L43	L65	L135
Original image
35mm equiv.	22mm	32mm	43mm	65mm	135mm
focal length	4mm	6mm	8mm	12mm	25mm
Aperture	2	2	2	2	2.5
horiz. angle	90°	60°	45°	31°	15°
vert. angle	67°	45°	34°	23°	11°
1m distance
Image width	2m	1.1m	0.8m	0.5m	0.3m
Image height	1.3m	0.8m	0.6m	0.4m	0.2m
5m distance
Image width	10m	5.7m	4.1m	2.7m	1.3m
Image height	6.6m	4.1m	3m	2m	1m
10m distance
Image width	20m	11.5m	8.2m	5.5m	2.6m
Image height	13.3m	8.2m	6.1m	4m	1.9m
20m distance
Image width	40m	23m	16.4m	11m	5.2m
Image height	26.6m	16.4m	12.2m	8m	3.8m
50m distance
Image width	100m	57.5m	41m	27.5m	13m
Image height	66m	41m	30.5m	20m	9.5m

Here is a sample image from the Q24 Hemispherical camera (click to enlarge):