The flash fires continuously for approx. 1 sec. in response to pressing the DOF preview button on the camera when cameras other than models in the EOS R or EOS M series are used as a sender with the EL-5 as a receiver. This feature is referred to as modeling flash. It is useful for checking subject shadows created by the Speedlite, as well as the balance of lighting in wireless flash photography ().
Press the depth-of-field preview button on the camera.
- The Speedlite fires continuously for approx. 1 sec.
- To avoid wearing out or damaging flash heads from overheating, do not fire the modeling flash more than 40 times. After firing the modeling flash 40 times, stop using the Speedlite for at least 40 min.
- After firing modeling flash this many times, further continuous firing at short intervals may activate a safety function that restricts firing. At a firing restriction level of 1, the firing interval is automatically set to approx. 8 sec. In this case, stop using the Speedlite for at least 40 min.