Canon EOS 20D Instruction Manual

97

An EOS-dedicated, EX-series Speedlite makes flash photography as 
easy as normal shooting. You can easily do the flash operations below. 
For detailed procedures, see the Speedlite’s instruction manual.

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¡E-TTL II Autoflash

E-TTL II is a new autoflash exposure system incorporating improved flash 
exposure control and lens focusing distance information, making it more 
precise than the previous E-TTL (evaluative flash metering with preflash) 
system. The camera can execute E-TTL II autoflash with any EX-series 
Speedlite.

With high-speed sync, you can set a sync speed faster than 1/250 sec.

Press the camera’s <

A> button to lock the flash exposure at the desired part 

of the subject.

In the same way as normal exposure compensation, you can set exposure 
compensation for flash. Set flash exposure compensation up to ±3 stops in 1/3-
stop increments.

The flash output is changed automatically for three successive shots (only with 
FEB-compatible Speedlites). Set flash exposure bracketing up to ±3 stops in 1/
3-stop increments.

As with wired, multiple Speedlites, wireless E-TTL II autoflash with multiple 
Speedlites provides all the above features. Since connection cords are 
unnecessary, flexible and sophisticated lighting setups are possible (only with 
wireless-compatible Speedlites).

The flash cannot be fired with an EZ-, E-, EG-, ML-, or TL-series 
Speedlite set in the TTL or A-TTL autoflash mode. Use the 
Speedlite’s manual flash mode instead if provided.