Exposure Metering Methods - Leica M Instruction Manual

EXpOSURE METERINg METhODS

Three metering methods are available on the Leica M:
– Strongly center-weighted metering in
takes account of the entire image field, although the parts of the
subject situated in the center have more influence on the exposure
value calculation than the areas at the margins.
– The light reflected by a bright shutter diaphragm blade in the first
shutter curtain is captured by a photo diode and measured.
– A choice of spot, center weighted and multi-field metering in
mode or using live view mode (see p. 174).
Advanced
Metering with the picture sensor is a prerequisite for this.
Required preliminary setting if not using live view mode
1. In the main menu (see p. 154/246) select
(page 1, section), and
Mode CAMERA
2. In the sub-menu select
– shutter metering, for the conventional metering
Classic
method described above, or
– sensor metering if you want to be able to choose
Advanced
between the three metering methods described below.
mode. This method
Classic
Light Metering
Note:
In live view mode, the three metering methods are always available,
i.e. even if Classic is set.
Selecting the metering method
1. In the picture parameters menu (see p. 154/246), select
Exposure metering
2. Select the desired metering method in the sub-menu:
– Only a small area in the center of the image is captured
Spot
and evaluated. This area is indicated by the rectangle in the
center of the monitor image.
–
Center-weighted
center weighting described above.
– This metering method is based on detection of
Multi-field
multiple metered values. The values are used in an algorithm to
calculate an exposure value appropriate to the situation,
resulting in correct reproduction of the assumed main subject.
• The set metering method is specified in the monitor in live view
and video mode, and in the extended (
246)
180
and
Similar to the
Classic
INFO ) display (see p.