The EF-X500 is a hot-shoe mount flash with the maximum guide number of approx. 50*. High-speed flash synchronization, FP mode, offers the flash at any shutter speed. This means you can concentrate on shooting even when a faster shutter speed is required, for example, in order to use a near-maximum aperture to produce beautiful bokeh.

The EF-X500 also features wireless multi-flash TTL auto function. Setting up multiple flashes and freely controling light on a subject and background offer a creative result. The TTL auto function is available with multi-flash setup as well as single flash, so that you can start shooting without making additional adjustments to light output.

With cameras equipped with a focal plane shutter, when the shutter speed is high, the first and second shutter curtains move across at the same time, making the exposure through a narrow vertical slit between them. It prevented light from a conventional flash to reach only a small section of the sensor. This is why a slower shutter speed must be used in flash photography, with the range of available shutter speeds severely limited.
The EF-X500 supports the FP mode (high-speed flash sync), in which the flash outputs continuous light while the first and second curtains travel across the sensor, thereby enabling flash photography at any shutter speed.
When shooting with a near-maximum aperture to create beautiful bokeh, the shutter speed tends to go higher. The EF-X500 frees photographers from being conscious about shutter speed limitations, and allows them to focus on shooting.