Instruction Manual

234
CLEANING THE SENSOR / DUST DETECTION
If any dust or dirt particles should adhere to the sensor cover glass,
depending on the size of the particles this can be identified by dark
spots or marks on the pictures.
You can use the
Dust detection function to check whether or how
many particles are on the sensor. This is much more accurate than a
visual inspection and is therefore a reliable method of assessing
whether cleaning is required.
The Leica M can be sent to Leica Camera AG’s Customer Care
department for the sensor to be cleaned at a cost (address: see p.
254) – this cleaning is not included in the warranty.
You can also carry out cleaning yourself, using the
Sensor cleaning
function in the menu. This allows access to the sensor by keeping the
shutter open.
DUST DETECTION
1. In the main menu (see p. 154/246) select
Sensor cleaning
(page 4 /
SETUP section).
•The relevant sub-menu appears.
2. Select
Dust detection.
•The message
Attention Please close the aperture to the
largest value (16 or 22), and take a picture of a
homogeneous surface (defocussed)..
3. Press the shutter release button (16).
•After a short time, a "picture" appears in the monitor, in which
black pixels represent grains of dust.
Note:
If dust detection is not possible, a corresponding message appears
instead. After a few seconds, the display reverts to that described
under 2. The picture can then be taken again.
CLEANING
1. In the main menu (see p. 154/246) select
Sensor cleaning
(page 4 /
SETUP section).
•The relevant sub-menu appears.
2. Select
Open shutter.
3. Select
Yes. If there is sufficient battery capacity, i.e. at least 60%,
the shutter then opens.
•The message
Please switch off camera after inspection.
appears.
Note:
If the battery capacity is lower, the warning message
Attention
Battery too low for sensor cleaning. appears instead to indicate
that the function is not available, i.e.
Yes cannot be selected.
4. Perform the cleaning. Make sure you follow the instructions
below.
5. After cleaning, turning the camera off closes the shutter again.
•The message
Attention Please stop sensor cleaning
immediately.
appears.