Leica M Edition 60, Instruction Manual

Page: 95 / 190

EN
93
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EXPOSURE MODES
The camera provides two exposure modes: Aperture priority mode and
manual mode. Depending on the subject, situation and your individual
preferences, you can thus choose between
– the familiar “semi automatic” operation, or
– setting a fixed shutter speed and aperture.
APERTURE PRIORITY
If the shutter speed dial is in the A position the electronics within the
camera generate the shutter speed automatically and continuously in the
range
1
/
4000
s to 60s, in accordance with the film speed setting, the metered
brightness and the manually selected aperture. The calculated shutter
speed is displayed in half steps to provide a better overview.
For shutter speeds slower than 2s the remaining exposure time is counted
down and displayed in seconds after the shutter release. The actually
generated and continuously controlled exposure time can however vary
from the half step value displayed: For example, if the display shows
16
(the
closest value) before releasing the shutter, but the calculated exposure time
is longer, the countdown after releasing the shutter may actually start from
19
.
Under extreme lighting conditions, based on all the parameters the
exposure meter may generate a shutter speed that is outside the working
range, i.e. brightness values that would require shorter exposures than
1
/
4000
s or longer than 60s. In such cases the specified minimum or
maximum shutter speed is nevertheless used, and these values flash in the
viewfinder as a warning.
Notes:
• As described in connection with the ISO setting on p. 89, a certain
amount of noise becomes apparent when using higher sensitivities, and
particularly with uniform dark surfaces. To reduce this annoying
phenomenon, after pictures with slow shutter speeds and high ISO values
the camera automatically takes a second “black picture” (taken 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.
• If you want a darker or lighter reproduction of the subject, setting the
exposure manually is recommended (see p. 94).