The Olympus FL-600R flash strobe has a maximum guide number of 50 (ISO200) and can work either as a wireless commander or slave strobe with both Olympus OM-D E-M5 and PEN compact system cameras enabling up to four channels and groups at long range in Commander Mode. The flash head tilts down 7 degrees and up 90 degrees, with 180 degrees rotation on either side. It uses 4 AA batteries for fast recycling, has a built-in wide diffuser panel for a 16mm equivalent coverage, and a small pull-out reflector plate to create catch-lights in portraits. For video recording, it has a built-in 1W LED Video Light. To top it off, an integrated control dial and arrow key make all menu operations very user-friendly.