Sony HVL-F36AM User Manual download pdf (Page 27)

Applications

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

(p. 26), since they allow flash photography at the maximum shutter

speed of the camera.

• If you press the high-speed sync button (HSS) 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.

• The flash range with high-speed sync is smaller than with normal flash

photography.

You can find the accurate flash range with high-speed sync by using the

HSS flat flash (ISO100) table on page 41. Divide the guide number by the

aperture to obtain the maximum distance of the flash range.

For example, with a 1/500 shutter speed and 28 mm focal length, the

guide number is 8 according to the table. Since 8 (the guide number)

divided by 4 (the aperture) equals 2, the flash range in this case would

be 2 m.

The number is doubled when using ISO400.

• 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.

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Sony HVL-F36AM User Manual Page 27