Specifications

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Adjusting the Camera and Exchanging the Lens

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2.5.3 Exchanging the Lens

The M25M can be shipped from the factory with sechs MOBOTIX standard lenses (L25,

L38, L51, L76, L160, L320) with the CSVario lens or the hemispheric L12 lens. This procedure

applies equally for all lenses. However, the removal/installation of the lock ring is not

required for the M25M-Sec-CSVario or for lenses with CS or C mounts.

Only lenses with CS or C mounts may be used with the CSVario version of the M25M

(Secure model only). MOBOTIX lenses with M14 thread cannot be used. Similarly, the

standard versions of the M25M can only take the standard MOBOTIX lenses with M14

thread. The hemispheric L12 lens, C Mount and CS Mount lenses cannot be used. Upgrading

to other model versions is not possible.

Proceed as follows to change a lens:

Unmount the lens cover by turning it counter-clockwise.

2. Loosen the lens’ lock ring (if ﬁtted) by turning it counter-

clockwise.

3. Remove the lens with the lock ring by turning it counter-

clockwise.

4. Unscrew the lock ring (if present) from the lens you just

removed and screw it onto the new lens.

Screw the new lens with the lock ring (if present) back into

the camera and restore the power supply of the camera.

6. Adjust the image sharpness according to the camera’s

live image on the computer monitor. Make sure that you

do not screw in the lens too far or by using excessive

force, since doing so may damage the lens mount.

Tighten the lock ring by turning it in clockwise direction

in order to secure the lens.

8. Screw the lens cover onto the lens again and clean it,

if required, using a clean, lint-free cotton cloth.

The focusing aid provides a visual aid when setting the image

sharpness of a MOBOTIX camera lens (see

Section 4.3.3 , «Image

and Audio Settings, Quick Controls»

in the

Software Manual

Lock ring

The white ring in the

lens cover prevents

the camera LEDs from

adding light reec-

tions to images