Photron FASTCAM SA-Z, Hardware Manual

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3.9. LOW LIGHT Mode
The more you increase the frame rate or shutter speed of the camera, the more the amount of light
entering the camera decreases, making the displayed image darker. Low light mode is a function that
temporarily increases the exposure time, making the displayed image easier to see to enable you to
focus and setup the camera.
The default shutter speed of this product is 1/60 second.
3.10. VARIABLE Setting
In the recording conditions settings, the frame rate and resolution can be set to the desired value
following the conditions listed below.

FRAMERATE can be set from 103 frame rates between 60 fps (50 fps for PAL) and 480,000
fps.

The size and horizontal position of the resolution can be set in 128 (horizontal) and 8(vertical)
increments.
•
The area cannot be moved to the vertical direction at the variable setting of the system.
•
VARIABLE settings made in the each 20K mode ON/OFF cannot be read in the other mode, and
vice versa. All settings that cannot be read are displayed gray.
43 FASTCAM SA-Z Hardware Manual