
Flash Photography with Speedlite 550EX
High-Speed Sync (FP Flash)
When the Speedlite 550EX is set to the ), it can synchronize at all shutter speeds, even those faster than 1/250 sec. When
is displayed in the viewfinder to indicate
(1)When you want to use fill flash for a portrait and maintain background blur with a large aperture.
(2)When you want to produce a catchlight in the subject’s eyes. (3)When you want to use fill flash to eliminate shadows
With conventional flash. | With FP flash. |
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