The Mecablitz 48 AF-1 features a clear, simple control panel and presents an impressive level of operational dependability. Users can stay current with firmware updates obtained through the internet and the flash unique USB connection. The Mecablitz 48 AF-1 has a guide number of 118, ISO 100 at 50mm, and is capable of manually setting up to 12 partial light levels. The 48 AF-1 flash also contains full bounce, swivel reflector head, automatic zoom head, and wide angle diffuse for 18mm coverage. It also compatible with Olympus RC Flash System.