Changing Shutter Angle - ARRI 16SR 3 Quick Manual

Checking the Mirror Shutter Angle
• Make sure that the camera is in standby.
• Push the PHASE button and keep it held down. The camera will run at the inching speed (1 fps).
• After two seconds the top line of the LCD display will show the open angle of the mirror shutter.
Changing the Mirror Shutter Angle
Note: Before adjusting the mirror shutter, turn the camera off and remove the power cable or on-board
battery! Accidentally running the camera while adjusting the mirror shutter can cause great damage.
• Remove the lens or lens mount cavity cap.
• If appropriate, remove the PL/bayonet adapter.
• Push in and turn the manual inching knob until the adjustment screw is visible in the lens opening.
• Insert the mirror adjustment tool into the adjustment screw.
Note: The mirror shutter adjustment tool is a metric 2 mm hex driver with a protective rubber covering. It
can be found in the back of the camera housing. The mirror shutter can be damaged if a tool
without a protective rubber covering is used!
• Press down on the adjustment tool to engage the adjustment screw. Hold the mirror shutter in its position
with the manual inching knob. Turn the adjustment screw counterclockwise to reduce the open shutter
angle, clockwise to enlarge the open shutter angle.
• As you change the shutter angle, you will feel indents where the labeled shutter positions are. To set a
given angle, make sure that you stop at the appropriate indent position.
Note: When you close the shutter down, you have to compensate your exposure. Open up the lens
aperture one stop for a 90° and two stops for a 45° shutter angle.

6. Changing Shutter Angle

Mirror adjustment tool
Arriflex 16SR 3 Quick Guide, 7/97a, Page 11
Manual inching knob
Adjustment screw