LEICA MP 0.72 Rangefinder Camera (Silver) - Handbuch (Seite 89)

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The B setting / Turning off the exposure meter
With the B / OFF setting on the shutter speed
setting dial, exposures of any duration are possible.
The shutter remains open for as long as the
shutter release button is held down.
The exposure meter is turned off.
If the camera is not used or is stored in a bag for
a long time, it should always be turned off by
turning the shutter speed setting dial to the
B / OFF position. This prevents any power
consumption, including the low consumption that
continues to occur in standby mode after the
exposure meter is turned off automatically and
the display is extinguished.
Exposure meter metering range
At room temperature, normal humidity and aper-
ture 1.0, the metering range stretches from 0.03
to 125 000 cd/m
2 . At ISO 100/21°, this corres-
ponds to EV-2 to 20 or f/1.0 and 4 s to f/32 and
1/1000 s (see also diagram on page 87).
Working below the metering range
If you are below the exposure meter’s metering
range at very low light densities, the left-hand
triangular LED flashes as a warning.
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 ex-
posure meter remains on for around 14 s after
you let go 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 into being continuously lit, indicating
that the meter is ready.