Meike MK-600 ETTL ETTL II HSS Speedlite for Canon Camera

Specifications: Type: On-camera, E-TTL II/E-TTL/TLL autoflash Speedlite Compatible cameras: Type-A EOS cameras (E-TTL II/E-TTL autoflash), Type-B EOS cameras (TTL flash) Guide No: 60(at 105mm focal length, ISO 100 in meters/feet) Flash coverage: 24-105mm (14mm with wide panel)                        Auto Zoom (Flash coverage set automatically to match the lens focal length and image size)                        Manual Zoom                        Swinging/tilting flash head (bounce flash) Flash Duration:  Normal flash: 1.2 ms or shorter,                         Quick flash: 2.3 ms or shorter Color temperature infromation transmission: Flash color temperature information transmitted to camra when flash is fired Exposure Control: Exposure control system: E-TTL II/E-TTL/TTL autoflash, auto/manual external metering, manual flash Effective flash range: Normal flash:Approx. 0.5-30m / 1.6 -98.5 ft.                                Quick flash: 0.5-7.5m / 1.6 - 24.6 ft. (min), 0.5-21m / 68.9 ft. (max) Flash exposure compensation: Manual, FEB: 1/3 stop increments (Manual and FEB con be combined) FE lock: With <FEL> button or <*> button Stroboscopic flash: Provided (1 - 199 HZ) Flash exposure confirmation: Pilot lamp lights Flash Recycling (with size-AA alkaline batteries) Recycling time/Flash-ready indicator: Normal flash: Approx. 0.1-5 Sec. / Red pilot Lamp lights                                                        Quick flash: Approx. 0.1-2.5 Sec. / Green pilot Lamp Lights Wireless Flash: Transmission method: Optical pulse Channels: 4 Wireless options: OFF, Master, and Slave Transmission range: Indoors: 12-15m / 39.4-49.2 ft.,                               Outdoors: 8-10m / 26.2-32.8 ft.                               Master unit reception angle: 40 ~ -40 degrees horizontal,  30 ~ -30 degrees vertical, Controllable slave groups: 3 (A, B and C) Flash ratio control: 1:8 - 1:1 - 8:1 in 1/2-stop incremments Slave-ready indicator: AF-asssist beam blinks Modeling flash: Fired with camera's depth-of-field preview button AF-Assist Beam: Linkable AF Points: 1-45 AF points (28mm or longer focal length)                             at center: 0.6-10m / 2.0-32.9 ft,                             Periphery: 0.6-5m / 2.0-16.4 ft. Power Source: Internal power Four Size-AA alkaline batteries Extenal power: Compact battery pack CP-E4 Dimensions: L x W x H: 191 x 77 x 60 mm Package Included: 1 x flash bag 1 x Meike MK-600 1 x English and Chinese manual