Canon SPEEDLITE 580EX II Instruction Manual

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Contents

Thank you for purchasing a Canon product.The Canon Speedlite 580EX II is an EOS-dedicated, high-output flashunit automatically compatible with E-TTL II, E-TTL, and TTL autoflash.It can serve as an on-camera flash as well as a master unit or a slaveunit in a wireless, multiple-Speedlite system. It has the same dust- andwater-resistance as EOS-1D series cameras." Read this instruction manual while also referring to yourcamera's instruction manual.Before using the Speedlite, read this instruction manual and your camera'sinstruction manual to familiarize yourself with the Speedlite operations.• The basic operation is as easy as with normal AE shooting.When the 580EX II is attached to an EOS camera, almost all automaticexposure control for flash photography is handled by the camera.It is almost the same as using the camera's built-in flash if it has one. You canthink of the 580EX II as a built-in, high-output flash, but attached externally." It becomes automatically compatible with the camera's flashmetering mode (E-TTL II, E-TTL, and TTL).In accordance with the camera's flash control system, the Speedlite controlsthe flash automatically in the respective flash metering mode:1. E-TTL II autoflash (evaluative flash metering with preflash reading/lensdistance information)2. E-TTL autoflash (evaluative flash metering with preflash reading)3. TTL autoflash (off-the-film metering for real-time flash metering)Regarding the camera's available flash metering modes, refer to the"External Speed lite" specification in the "Specifications" of yourcamera's instruction manual.The camera instruction manual's chapter on flash photography will referto cameras having flash metering modes 1 or 2 as a Type-A camera(compatible with E-TTL II or E-TTL). And cameras having flashmetering mode 3 (compatible with only TTL) are called Type-Bcameras.* This instruction manual assumes that you are using the Speedlitewith a Type-A camera.For Type-B cameras, see page 55.2