Canon Speedlite 600EX-RT Instruction Manual - Page 115

Specifications Flash Recycling Recycling time: Normal flash: approx. 0.1 - 5.5 sec., Quick Flash: approx. 0.1 - 3.3 sec. * When using AA/LR6 alkaline batteries Flash-ready lamp display: Lit in red: normal flash available Lit in green: Quick Flash available AF-assist Beam Compatible AF system: Effective range: 1 - 61 AF points (28 mm or longer focal length) * During viewfinder shooting, and Quick Mode during Live View shooting or movie shooting supported At center: approx. 0.6 - 10 m / 2.0 - 32.8 ft., periphery: approx. 0.6 - 5 m / 2.0 - 16.4 ft. Radio Transmission Wireless Function (600EX-RT only) Frequency: 2405 - 2475 MHz Modulation system: Primary modulation: OQPSK, secondary modulation: DS-SS Wireless settings: Master/slave Channel: Auto, Ch. 1 - 15 Wireless radio ID: 0000 - 9999 Slave unit control: Up to 5 groups (A/B/C/D/E), up to 15 units Transmission distance: Approx. 30 m / 98.4 ft. * When there are no obstacles or obstructions between the master unit and slave unit, and no radio interference with other devices * The transmission distance may be shorter depending on the relative positions of the units, surrounding environment and weather conditions Flash ratio control: 1:8 - 1:1 - 8:1, power 1/2-stop increments Slave flash battery check: icon lights on the master unit's LCD panel, slave unit's AF-assist beam emitter blinks, flash-ready lamp lights Linked shooting: Provided Optical Transmission Wireless Function Connection method: Optical pulse Wireless settings: Master/slave Channel: Ch. 1 - 4 Slave unit control: Up to 3 groups (A/B/C) Transmission distance: Indoors: approx. 0.7 - 15 m / 2.3 - 49.2 ft., outdoors: approx. 0.7 - 10 m / 2.3 - 32.8 ft. (at the front) ±40° horizontally and ±30° vertically, facing the master unit Flash ratio control: 1:8 - 1:1 - 8:1, power 1/2-stop increments Slave flash battery display: Slave unit's AF-assist beam emitter blinks, flash-ready lamp lights 113