Wireless remote flash unit with Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
Angle of coverage
78 degrees horizontal, 60 degrees vertical
Guide number
10/33 (ISO 100, m/ft.), 14/46 (ISO 200, m/ft.)
Flash modes
i-TTL, D-TTL, TTL (film-based cameras), M (manual)
Recycling time
6 seconds or less
Bounce capability
Flash head tilts down (toward optical axis) to 60 degrees with stops at every 15 degrees, and up (away from optical axis) to 45 degrees with stops at every 15 degrees
Number of flashes
Approximately 290
Flash duration
Approximately 600 micro-seconds
Mounting foot
Dedicated shoe for SX-1 Attachment Ring or AS-20 Speedlight Stand