•This flash unit is set to high speed sync automatically when the shutter speed is set faster than the sync speed. The sync speed differs depending on the camera used. For further details of the sync speed, refer to the operating instructions of your camera.

•If you press HSS button again, high-speed sync is cancelled. When high-speed sync is cancelled, the shutter speed cannot be set faster than the sync speed.

•Taking photos in bright locations is recommended.

•High-speed sync cannot be used with bounce flash.

•When using a flash meter or color meter, high-speed sync cannot be used because it interferes with the proper exposure.

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 (page 34), since they allow flash photography at the maximum shutter speed of the camera.

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