Photron Fastcam SA3, Hardware Manual

Page: 36 / 101

Chapter. 3 Recording
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3.4. Selecting the Shutter Speed
With the system, the shutter speed is independent of the frame rate, and you can control the
exposure time in one frame using the electric shutter. By making an exposure that is of a shorter
period than the frame rate, high-speed objects can be photographed blur-free.
The shutter speed can be set from 1/frame s to a maximum of 1/500,000 s (approximately 2us).
 For more information of Shutter Speed, refer to “5.1.7. Shutter Speed List”, page 81.
3.4.1. Changing SHUTTER MODE
By switching between [MODE1] and [MODE2] on the [SHUTTER MODE] submenu on the
[SHUTTER] menu, the shutter speed value first used when the frame rate is changed can be set.
MODE1 : Changing the frame rate automatically sets the shutter speed to 1/frame s.
MODE2
: Changing the frame rate does not change the shutter speed, it maintains the current
setting.