44• LED LightBrightness: Approx. 75 lux (1 m / 3.3 ft.)Coverage: EF50mm lens angle of viewRange: At ISO 3200f/1.4: Approx. 4 m / 13.1 ft., f/2.8: Approx. 2 m / 6.6 ft.,f/4: Approx. 1.4 m / 4.6 ft., f/5.6: Approx. 1 m / 3.3 ft.• Remote Release FunctionCompatible cameras: Cameras compatible with Remote Controller RC-6, RC-5, orRC-1Release mode: Release after 2 sec.Operating range: Approx. 5 m / 16.4 ft. from the front of the camera• Custom Functions: 4 (8 settings)• Power SourceBattery: Four AA/LR6 alkaline batteries*AA/LR6 Ni-MH and lithium batteries also usableRecycling time: Approx. 0.1 - 2.3 sec. (Quick flash: Approx. 0.1 - 1.8 sec.)Flash-ready indicator: Flash-ready lamp lightsBattery life (flash count): Approx. 180 - 1000 flashes (with AA/LR6 alkaline batteries)LED light: Lights for a maximum of approx. 3.5 hours (with AA/LR6alkaline batteries)Power saving: Power off after approx. 90 sec. of idle operation (60 min. if setas slave unit)• Dimensions and WeightDimensions (W x H x D): Approx. 70 x 115 x 78.4 mm / 2.8 x 4.5 x 3.1 in.Weight: Approx. 275 g / 9.7 oz. (Speedlite only, excluding batteries)All specifications above are based on Canon’s testing standards.Product specifications and external appearance are subject to change withoutnotice.COPY