Leica M Operating Instructions Manual page 145

To set the sensitivity automatically
2. Select in the 2 step
Auto
nd
• The previously grayed-out (unavailable) sub-menu options
are now enabled.
Note:
By factory default, the
Maximum AUTO ISO
.
ISO 800
To restrict the automatic setting range
4. In this sub-menu, select
Maximum AUTO ISO
. In the
Maximum Exposure Time
select the highest sensitivity to be used, and hence the range
within which the automatic setting is to operate, or in the
sub-menu either set one of the three
Maximum Exposure Time
focal length-specific settings -
you wish to leave it to the camera to ensure wobble-proof
shutter speeds, or the slowest shutter speed that you wish to
set ( ⁄ s - ⁄ s in whole steps). In the focal length-specific
1 1
2 500
settings, the camera only switches to a higher sensitivity if the
shutter speed would fall below the threshold due to lower
brightness, e.g. with a 50mm lens at slower speeds than
at , or ⁄ s at
1/focal len. 1 1/(2xf)
125
5. Confirm your setting with the
This function requires the use of coded lenses or setting of the lens type used in
2
the menu (see p. 136).
.
function is limited to
and/or
sub-menu,
Maximum AUTO ISO
, ,
1/focal len. 1/(2xf) 1/(4xf)
1
, or ⁄ s at .
1 1/(4xf)
250
INFO 27 or SET button 17 .
Specifying AUTO ISO mode in manual exposure setting
4. In this sub-menu select
.
Previous ISO
5. If you select , automatic control is active (where appropriate
On
within the limit you specified in the
sub-menu item). With
sensitivity will be used.
6. Confirm your setting with the
Note:
The following rule applies when using automatic bracketing (see p. 150):
The sensitivity automatically determined by the camera for the
uncorrected picture is also used for all other pictures in a series,
i.e. this ISO value is not changed during a series. This may mean
that the slowest shutter speed specified under
Maximum Exposure Time
if
2
⁄ s
60
, and then
AUTO ISO in M Mode
Maximum AUTO ISO
the last manually set
Previous ISO
or button
INFO 27 SET
is exceeded.
EN
or
On
.
17
141