User's Manual

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Focusing ring
The focusing ring (16) shows the distance set
and, in conjunction with the scale (15), the
depth-of-field range. For details on focusing,
see the "Rangefinder" section on page 22.
Aperture ring (17)
The aperture values are standardised world-
wide. They are selected such that the amount
of light reaching the film is always halved when
the lens is stopped down between two
successive apertures (stops). One stop
corresponds to one value on the shutter speed
dial (10).
Like the shutter speed dial, the aperture ring
engages perceptibly at each full stop (and for
most lenses also at half-stops). With a little
practice, you will also be able to set the
apertures in the dark.
Like the shutter speed dial, the aperture ring
moves in the same direction as the exposure
meter displays in the viewfinder:
When the left triangular LED comes on, for
example, turning the dial in the direction of the
arrow, i.e. to the right, causes the slower
shutter speed required to be set.
For further details on setting the correct
exposure, see the "Exposure metering" section
on page 24.
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