LEICA MP 0.72 Rangefinder Camera (Silver) - Handbuch (Seite 85)

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Distance metering
Due to its large effective metering basis, the
rangefinder on the three LEICA MP models is
very precise. The benefits of this are particularly
noticeable when using wide-angle lenses with
their relative deep depth of field. The higher
magnification in the case of the 0.85 viewfinder
has the effect of providing an even large meter-
ing basis, further increasing the accuracy:
The rangefinder metering field is visible as a
bright, sharply defined rectangle in the center of
the viewfinder. If you keep the large viewfinder
window (14) closed, only the activated bright-line
frame and this metering field remain visible. The
focus can be set using either the superimposed
image or split image method:
Superimposed image method (double image)
In a portrait, for example, aim the metering field
at the eye and turn the distance setting ring on
the lens until the contours in the metering field
are brought into line. Then choose the subject
detail.
Split image method
When taking photographs of architecture, for ex-
ample, aim the range finder metering field at the
vertical edge or another clearly defined vertical
line and turn the distance setting ring on the lens
until the contours of the edge or line can be
seen at the limits of the metering field with no
misalignment. Then choose the subject detail.
In practice, there is often no clear distinction
between the two methods. The two criteria can
be used to great effect in combination.
Mechanical metering x Viewfinder = Effective
basis magnification metering basis
(Distance between
optical axes of viewfinder
and the rangefinder
viewing windows)
Leica MP with = approx.
0.72x viewfinder 69.25 mm x 0.72 49.9 mm
Leica MP with = approx.
0.85x viewfinder 69.25 mm x 0.85 58.9 mm
Leica MP with = approx.
0.58x viewfinder 69.25 mm x 0.58 40.2 mm