Canon 14EX, 24EX instruction manual CHigh-speed sync, RSecond-curtain sync, Select c, Select r

cHigh-speed sync

With high-speed sync (FP flash), the flash can synchronize with all shutter speeds.

Select <c>.

Press the <h> and <i> buttons simultaneously to display <c>.

In the viewfinder, check that the <F> icon is lit.

If the shutter speed is slower than the maximum flash sync speed, <F> will not be displayed in the viewfinder.

To return to normal flash, press the <h> and <i> buttons simultaneously to turn off <c>.

With high-speed sync, the faster the shutter speed, the shorter the flash range will become.

rSecond-curtain sync

With a slow shutter speed, you can create a light trail following the subject. The flash fires right before the shutter closes.

Select <r>.

Press the <h> and <i> buttons simultaneously to display <r>.

The camera’s “buLb” mode works well with second-curtain sync. To return to normal flash, press the <h> and <i> buttons simultaneously to turn off <r>.

With E-TTL II/E-TTL, two flashes will be fired even at slow shutter speeds. The first flash is the preflash.

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