When the sensor function is selected, the camera is controlled by the built-in light sensor. The sensitivity, the time delay before and after the shutter can be adjusted within the function menu.

For very short events like slamming flash, the mirror lockup should be enabled to avoid additional delay.

Blitzeinschlag über dem ZürichseeBlitzeinschlag in Siebnen

Using a laser diode and the built-in light sensor a simple light barrier can be built. The sensor function provides adjustment of the delay time. In this way it is not necessary to adjust the height of the light barrier for the correct trigger point.