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Notes:
• Long exposure times can result in significant picture
noise.
To reduce this annoying phenomenon, after pictures
with very slow shutter speeds (from around
1
/
30
s,
differs depending on other menu settings) the Leica
M Monochrom automatically produces a second
"black picture" (with the shutter closed). The noise
present in this parallel picture is then digitally
“subtracted” from the data for the real picture.
• This doubling of the “exposure” time can be
significant at longer exposure times, and must be
allowed for. During this time the camera should not
be turned off.
• At shutter speeds of more than 2s, the message
Noise reduction 12s
1
appears in the monitor.
1
Time is an example
EXPOSURE METER METERING RANGE
The metering range at room temperature, normal
humidity and ISO 160/23 is EV 0 to 20, or f/1.0 and
12s to f/32 and
1
/
1000
s.
VALUES ABOVE AND BELOW
THE METERING RANGE
If the exposure meter reading is below its working range
in very low lighting conditions and in manual mode,
the left hand triangular LED flashes as a warning, while
the right hand LED does the same if there is too much
light. In aperture priority mode, the shutter speed is still
displayed. If the required shutter speed is less than 32s
or more than
1
/
4000
s, these displays also flash.
As the exposure is metered with the working aperture,
this situation can come about by stopping down the
lens.
Even if you are below the metering range, the exposure
meter remains on for around 12s after you let go of
the shutter release button. If the lighting conditions
improve in this time (e.g. through a change in the
subject detail or opening of the aperture), the LED
display changes from flashing to continuously lit,
indicating that the meter is ready.
