20
and runners (z4),thence over the film transport
sprockets (26) and on to the take-up spool (27’).
The teeth of the sprocket wheels (27) must en-
gage the perforations on both sides of the film
and the film should run accurately within the
slightly recessed film track (Fig. 18).
Replace the camera back (29) as already de-
scribed and turn the milled ring (30) through
90’ so that the two red dots are no longer oppo-
site one another. Now fire off two blank frames
to wind on the fogged leader at the beginning
of the film: release the shutter, swing the rapid-
wind lever (11) up to its stop, then press the
rel- ease button and swing the rapid-wind lever
once again. Turn the disc of the frame counter
(9) in the direction of the arrow with your index
Fig. 18
Fig. 19
Summary of Contents for EXA IIa
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