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Do not remove the slide from an at-
tached magazine before you have
closed the shutter (open/close shut-
ter lever).
When using large amounts of shift
with the 35 mm or 45 mm lenses, stop
down to f/16 or beyond to ensure
even illumination.
Filter holder
To maintain the brightness on the focusing screen
while focusing and composing, it is easier to add
any filtration required just before exposure. To fa-
cilitate this operation as well as simplify general
use, both the centre filter, additional filters and
lens shades can be attached and removed as a com-
bined unit. This produces a very rapid and conven-
ient way of working.
The lens (e) has an accessory mount (d) (bayonet
fitting) that holds the centre filter holder (c). The
centre filter holder has a screw fitting to hold the
circular centre filter (b) as well as a surrounding
flange to hold the filter holder (a). Together (a),(b)
and (c) combine to produce the removable filter
holder assembly.
The filter holder is a Lee type so there are several
compartments to accommodate not only different
thicknesses and types, but also several filters si-
multaneously. All standard 100x100 mm and
100x150 mm filters will fit and can be adjusted ver-
tically, for example, if graduated filters are used.
By pulling the knob on the filter holder catch tem-
34
porarily, the holder can also be oriented at a
90˚click-stop position, or freely at any angle in the
vertical plane.
A deviation from the vertical orienta-
tion of the filter holder may affect the
performance of the lens shade caus-
ing slight vignetting and so should be
checked accordingly.
Attaching the filter holder assembly:
19
1. With the lens in place, align the index marks on
the centre filter holder and lens surround and ro-
tate the filter holder clockwise until it clicks into
place.
2. Screw the M77 centre filter into place in the
centre filter holder.
3. Ensure the two lower lugs on the filter holder
are seated properly in the protruding rim of the
centre filter holder. While lifting the knob of
the filter holder catch, gently push the whole
assembly into place, releasing the knob so that
the catch is positioned in the slot in the centre
filter holder.
Removing the filter holder assembly.
Press the catch on the lens accessory mount while
rotating the filter holder assembly counter clock-
wise. To remove the filter holder only, leaving the
centre filter in position, pull the knob of the filter
holder catch upwards and pull the filter assembly
away from the lens.
In this way, all the accessories can be removed and
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