With the capability of to control three groups of flashes in its role as a commander, the Nissin i60A is a powerful, versatile flashgun in a compact design. Its wireless slave TTL functionality can be controlled by another Nissin flash unit or by the Air 1 commander unit, and it has a guide number 60m at ISO 100/200mm, allowing it to cover focal lengths of 24-200mm. This can be expanded to reach 16mm using the integrated wide-angle diffuser. Weighing only 300g, this lightweight, pocket-sized accessory is a great addition to your compact system camera kit.