Canon CINEZOOM 512 - Manual (Page 16)

CANmCiNEZOm ■
Variable shutter adjusting lever
CANON CAMERA CO
MADE IN JAPAN 1011
Rewind mark R
Rewind release button
Re-adjust to the same dial
ADJUSTMENT OF VARIABLE
SHUTTER CONTROL
By sliding the variable shutter adjusting
lever, it is possible to change the open
angle of the shutter leaves at four stages
from OPEN to CLOSE.
By
doing so, besides being able to adjust
the exposure, operation of the fade-out
and fade-in may be executed very effec­
tively.
• Sliding of the lever may be carried out
smoothly to adjust the full opening and
full closure.
• Each stage of the scale is at a position
which halves the open angle, thus the
open angle degree of each shutter scale
is as follows :
OPEN 2 4 CLOSE
165° 82.5°, 41.25° 0
(Completely opened) (Completely closed)
• Although each point of the scale has a
click stop, the intermediate points of
the scale also changes consecutively.
• By sliding the lever beyond CLOSE, it
will stop opposite the rewind release but­
ton.
The shutter will not function, (see
section on fade).
VARIABLE SHUTTER CONTROL AND
FILMING SPEED
Changing the variable shutter adjusting
lever will relatively affect the filming
speed and exposure time as follows:
8 12 16 24 32 48 64
165° 0 1/18 1/26 1/35 1/50 1/70 1/100 1/140
82.5° 2 1/36 1/52 1/70 1/100 1/140 1/200 1/280
41.25° 4 1/72 1/104 1/140 1/200 1/280 1/400 1/560
ADJUSTMENT OF THE VARIABLE SHUT­
TER
ADJUSTING LEVER AND FILM
SENSITIVITY
Setting of the lever will change the expo­
sure according to the dial. As a result, it
is
necessary to change the setting of the
film sensitivity to compensate the expo­
sure factor. To do this, adjust the film
sensitivity to the exposure factor mark
which is the same as the open angle index
being
used. By doing this, the meter will
function properly. For example, when the
shutter opening angle is set at 2, and the
speed of the film being used is ASA 25, set
the scale of 25 at the 2x index mark.