This powerful flash in a frost-proof (10 °C) and dust and splash-proof design is particularly compact and lightweight. In combination with the weather-resistant cameras of the OM-D series and M.Zuiko PRO lenses, you can take pictures in adverse conditions without any worries. This flagship high-intensity flash has a maximum guide number of 42 and the combination of the camera's internal image processor (TruePic) and TTL synchronisation technology ensures optimum lighting conditions for photo shoots. As the flash has a wireless flash triggering mode, you can control shots with multiple high-intensity flashes wirelessly from a distance of up to 30 metres. You can control up to 3 flash groups and any number of flash units and select which of the groups should trigger. You can also set correction values for the flash intensity and adjust various settings. Another attractive feature is the slave function. You can simply attach the flash to the hot shoe of a camera and use it as a master flash when using the control function. Of course, the unique Olympus functions High Res. Shot, Focus Stacking and Focus Bracketing are also supported. In addition, shorter shooting intervals are now available. The FL-700WR features an LED light for video, allowing OM-D videos to be recorded in low light or backlit conditions.