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manuals
15
Exposure metering at working aperture
Some lenses and accessories do not have an
automatic spring back diaphragm or lack the
linkage mechanism for it. In these cases, you
have to obtain the exposure-meter reading at
working aperture, stopping up or down to adjust
the amount of light reaching the exposure meter's
photocell.
With lenses and accessories not equipped with
automatic springback diaphragm, the modes
A ,
A and m can be used.
Low-light warning
The given measuring range of the LEICA R7 has
a linear characteristic. If the light intensity level
is below the minimum requirement, this
characteristic is no longer guaranteed due to the
insufficient photocell current. This can lead to
incorrect measurements.