Pentax 645N - Page 75

Notes on Accessories
When using an ordinary polarizing filter, a half mir-
ror incorporated into the autofocus system reduces
the effectiveness of the autofocus function when
used in combination with an ordinary polarizing fil-
ter. Use a CIRCULAR POLARIZING FILTER for
proper autofocus operation.
* When using the Auto Bellow 645 with 645N cam-
era, the double cable release A is required for
releasing the shutter. If your Auto Bellows 645
does not include the double cable release A, the
double cable release A is available as an optional
accessory.
How to attach
1 Attach the double cable release so that the end
with the red end ring of the double cable release
is connected to the socket with the red ring in the
lower part of the front board of the Auto Bellows
645.
2 The other end fits into the shutter release button.
Adjust the double cable release so that when the
double cable release is pushed with the lens set at
the minimum aperture, the shutter is released after
the lens is fully stopped down. If the shutter is
released before the aperture is stopped fully down
to its minimum, adjust the cable so that the end with
the red ring to extend further and/or the end that
attaches to the shutter button to extend less.
Adjustment procedures
To extend the length, turn the knurled front ring to
the left ( when viewed from front end ), and then
turn the back knurled ring to the left ( when viewed
from front end ) while holding the front ring.
To shorten the length, turn the back knurled ring to
the right ( when viewed from front ) , and then turn
the front knurled ring to the right while holding the
back knurled ring.
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