Canon Speedlite EL-1

Specifications: Minimum release time 0.1-0.9 seconds1 Burst of up to 170 flashes at full power2 Lithium-ion battery Up to 335 shots at full power Guide number 60 m4 Illumination of distant objects and groups of objects Weatherproof design Confident operation even in adverse conditions Wide range of power settings Complete versatility from full power to 1/8192 of maximum power Built-in LED modeling light With color temperature and brightness control Active cooling system Longer shooting time without overheating Accurate battery status indicator Charge on time and battery replacement Flash modes: Auto exposure control - E-TTL II / E-TTL Flash sync at high speed (FP flash mode) Manual mode / power settings, 1/1 to 1/81922 Manual steps 1/3 steps Stroboscopic (MULTI) flash Flash firings in series Max. at full power: approx. 1703 Strobe / power settings, 1/4 - 1/8192 (1/128 with optical transmission) Strobe frequency 1 - 500 Hz (199 Hz when using the optical receiver function)