of the camera is set according to the manufacturer specifications. 52
mm ,57.15 mm and that the lens used is correctly adjusted ; this
can be determined by the use of a collimator. It is preferable to use a
“wide angle lens” i.e. : less than 25 mm. To proceed, you must first
unscrew and remove the circular Cap located on the upper side of
the rectangle plate, above the battery locking screw. Inside the access
hole, locate the screen holder that you can unlock by turning its
Allen screw counterclockwise. Set your focusing chart at a measured
distance. Set the focus mark of the lens at the exact same distance (
Adjust the diopter ! ) you can, now, focus the
ground-glass, moving the holder up or down by turning the Aaton
two pins tool. Lock the Allen screw. Double check the focus of the
viewing screen using the focus ring of the lens. If the image is still
not sharp, proceed again.
2.3 MIRROR SHUTTER
2.3.1 Concept
The reflex mirror shutter is designed to provide an optical path to
the viewfinder while the claw movement advances the film to the
next frame.
The shutter features a four-position user-adjustable opening.
• Standard180° for filming
under standard 60 Hz HMI lighting at 24 fps
or under standard 50 Hz HMI lighting at 25 fps
without flicker.
• 172.8° for filming
under 50 Hz HMI lighting at 24 fps
without flicker.
• 150° for filming
under 60 Hz HMI lighting at 25 fps
Always Remove the
Battery
Each time you need to go insi-
de the camera body, you must
first remove the battery. If, by
mistake, the camera starts run-
ning while you finger is rota-
ting the mirror shutter, the
mechanism of the camera body
could be seriously damaged.
25
THE CAMERA BODY
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