Ikelite DS161 Underwater Substrobe Head

The DS161 Underwater Substrobe Head from Ikelite is a strobe flash equipped with a built-in 500-lumen video light. The strobe has a power rating of 160 watt-sec and a guide number of 38-76' at ISO 100, depending on whether you're underwater or above water. It provides a 90° angle of coverage, which is increased to 100° when using the included diffuser. The DS161 has a color temperature of 4800K. Its depth rating is 300'. When combined with a compatible TTL system, the DS161 automatically adjusts brightness to provide ideal TTL flash exposure--whether you're shooting at macro, portrait, or wide-angle focal lengths. Manual exposure control is also available. The strobe is equipped with an Ikelite ICS-5 bulkhead connector, which is also present on many Ikelite underwater camera housings, and requires a sync cord, which is available separately. Additionally, you can use the optional #4401 Fiber Optic Adapter to convert the bulkhead to a fiber-optic cable port for manual exposure. The #4067 Battery Pack and #4066.1 Smart Charger are sold separately.