Canon EOS-1V HS Camera Lens User Manual


 
Flash Photography with Speedlite 550EX
86
High-Speed Sync (FP Flash)
When the Speedlite 550EX is set to the high-speed sync mode ( ), it can
synchronize at all shutter speeds, even those faster than 1/250 sec. When
high-speed sync is enabled, is displayed in the viewfinder to indicate
high-speed sync.
High-speed sync is effective in the following cases:
(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.
SEC.06 P083-094 (E) 29-01-2003 12:38 Pagina 86