Photron FASTCAM SA-X2, Hardware Manual

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FASTCAM SA-X2 43
2.2 Selecting Shutter Speed
2.2 Selecting Shutter Speed
The shutter speed (Exposure time) is independent of the frame rate, and it is possible to control
the exposure time in the frame using the electric shutter. By making an exposure that is of a
shorter period than the frame rate, high-speed objects can be shot without blur.
When the frame rate is lower than 1,000 fps, the shutter speed can be changed from 1/1,000
(1msec), and when the frame rate is 1,000 fps or higher, it can be changed from one step shorter
shutter speed than '1/frame' second to maximum 1/3,410,526 second (293nsec) (it depends on
the setting).
For more information of Shutter Speed, refer to "3.1.6 Shutter Speed List (Uncertain interval
extension: Disable)", page 54 and "3.1.7 Shutter Speed List (Uncertain interval extension: Enable)",
page 55.
For example, when working under 500fps, the available shutter speed varies from 1/1,000 to 1/
996,923 second.
When working under 2000fps, a shutter speed varying from one faster step than 1/2,000 second, 1/
2,020 second, to 1/996,923 second can be obtained.