Canon EOS Elan II EOS ELAN II Instruction Manual - Page 84

VII. E-TTL Auto Flash System with Canon Speedlite 380EX High-Speed Sync (FP Flash) With Speedlite 380EX's high-speed sync switch set to $H, high-speed sync (focal-plane flash) is set automatically when the shutter speed set is faster than 1/125 sec. Speedlite 380EX can then synchronize with all shutter speeds. When high-speed sync is in effect, "H" is displayed on the right of S in the viewfinder. High-speed sync is effective when you want to use fill-in flash on the subject and maintain background blur with a large aperture. Or, when you want to produce a catchlight in the subject's eyes in daylight. • When high-speed sync is used, the Speedlite's Guide No. decreases. if the ambient light is insufficient, using high-speed sync may result in underexposure. • High-speed sync can be used only in Creative Zone modes. The normal sync speed is used in Programmed Image Control modes. FE Lock FE lock obtains and locks the correct flash exposure for the selected portion of the scene. When Speedlite 380EX is used with the camera in a Creative Zone mode, the camera's AE lock button functions as an FE (Flash Exposure) lock button. 1 Set the camera to a Creative Zone mode (P, Tv, Av, M, or DEP). 2 Check that the 380EX's FP flash switch is set to the green dot (normal sync speed). 3 Focus the subject where you want to obtain correct flash exposure. (Keep pressing the shutter button halfway even after focus is achieved.) 4 Aim the center focusing point where you want to obtain the correct flash exposure. Then press the FE lock button. • The center focusing point flashes in red. 84