Instruction Manual

180
EXPOSURE METERING METHODS
Three metering methods are available on the Leica M:
Strongly center-weighted metering in
Classic mode. This method
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
Advanced mode or using live view mode (see p. 174).
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
Light Metering
Mode (page 1, CAMERA section), and
2. In the sub-menu select
Classic shutter metering, for the conventional metering
method described above, or
Advanced sensor metering if you want to be able to choose
between the three metering methods described below.
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 and
2. Select the desired metering method in the sub-menu:
Spot Only a small area in the center of the image is captured
and evaluated. This area is indicated by the rectangle in the
center of the monitor image.
Center-weighted Similar to the Classic
center weighting described above.
Multi-field This metering method is based on detection of
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 (
INFO) display (see p.
246)