Sony HVL-F60M - Manuel (Page 58)

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High-speed sync (HSS)
High-speed sync eliminates the restrictions of flash sync speed and enables the
flash to be used through the entire shutter speed range of the camera. The increased
selectable aperture range allows flash photography with a wide aperture, leaving
the background out of focus and accentuating the front subject. Even when
photographing at a wide f-stop in the A mode or M mode of the camera, when the
background is very bright and the shot will normally be over-exposed, you can
adjust the exposure by using the high-speed shutter.
For details on setting the HSS features, see “MENU settings” (page 88).
• HSS may not work depending on the camera model used. For details on
compatible camera models of this flash unit, visit the Sony website in your area,
or consult your Sony dealer or local authorized Sony service facility.
High-speed sync Normal flash
Flash Sync Speed
Flash photography is generally associated with a maximum shutter speed
referred to as the flash sync speed. This restriction does not apply to cameras
designed for high-speed sync (HSS) photography, since they allow flash
photography at the maximum shutter speed of the camera.