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8. Optics
8.1.
Lenses
All 35 format lenses with a PL-Mount can be used
on the ARRIFLEX D-21. Lenses with a Ø 41 mm
standard or bayonet mount cannot be used.
Heavy and long lenses, such as zoom lenses,
must be supported at all times.
Lens Mount
The ARRIFLEX D-21 is equipped with Lens Data System
contacts
➪
image
for direct communication with LDS
lenses. The Lens Data System collects essential lens
and camera information for display on a dedicated
remote display and enables iris compensated speed
ramps in conjunction with a Wireless Remote Control.
These features are also available for non-LDS lenses,
where focus, iris and zoom information is calibrated
through the lens motor (CLM-2) position, which is then
stored into accessories, such as the Lens Data Archive
(LDA) or the Wireless Remote Control (WRC-2).
Lens Mount Position
The lens mount should always remain in Super
35 position (2)
➪
image
, although it is possible to
rotate the lens mount to Normal 35 configuration
(1). Unlike with 35 mm cameras, this also
applies when anamorphic lenses are used.
Changing Lenses
Changing camera lenses should be done
in a dry and dust-free environment.
Before changing or removing a lens, always
make sure to stop the mirror shutter. This
prevents damage to the shutter when an
inappropriate lens (e.g. 16 format lens) is
inserted by mistake. The shutter in "finder-open"
position acts also as a protective cover to the
sensor (cover glass).
Take care that dust cannot enter the lens
•
compartment while no lens is attached.
