36 (ISO 100/m)Guide Number Wireless Functionality with 4 Channels, Full Manual and P-TTL Exposure Control, Guide Number: 118' at ISO 100, Effective Range: 2.3-17.7' at f/5.6, Weather-Resistant Construction, Rotates 315° & Tilts +90 to -10°, Recycle Time: 1.5-2.5 seconds
