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After much research regarding my EOS 60D, I often find the general statement that when operting in Av (or Tv) mode and flash, the camera will meter for the ambiant light and the flash will be set to fill the subject.  Thus, the camera/flash system wi...

I am using an EOS 60D with a 320EX Speedlite.  Just getting started with high speed sync.  I set Custom Function 1-7 to "Auto" and External Flash Shutter Sync to "Hi-speed".  So now when the shutter speed goes above 1/250, high speed sync is active. ...