Measurement methods
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4 MEASUREMENT METHODS
Depending on operating mode, following measurements can be made with the aid of the LED-
Panel:
1. Shutter lag without autofocus time
2. Shutter lag with autofocus time
3. Exposure times
4. Video recording rate / Framerate
5. Speed of multi shot mode
6. Rolling shutter speed
4.1 Shutter lag without autofocus time
The LED-Panel is used in TRIGGER EXT operating mode and the time is set. The LED-Panel is
connected to and started with a remote release. For measuring the shutter lag, a micro switch
button must be connected to the release button on the camera, the camera must be focused
and finally both buttons must be pressed. After the shutter lag has passed, the camera takes a
picture of the running LED-Panel. The time passed since the micro switch was pressed can be
read with the aid of the lighted LED(s) in this picture.
Figure 2
Because the two buttons have a different release point, a time lag can occur between starting
the LED-Panel and releasing the camera. We offer an optional device that pushes both buttons
(micro switch and camera release button) in less than 5 ms guaranteed. This device
– iQ-
Trigger - activates the camera release. The iQ-Trigger is available as a separate product and is
not included in the scope of delivery of LED-Panel.
