7D's built-in flash can work as a master unit to wirelessly trig

来源: 云漫 于 2012-12-29 18:29:23 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (238 bytes)

However, it is an optical trigger that requires direct line-of-sight.

600ex-RT and other radio triggers such as PW use radio signals, which is much more flexiable.

 

 

 

 

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