Pentax 16701 K-x Black K-x Manual - Page 158
Flash Characteristics in Each Exposure Mode, Using the Slow-speed Sync
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Using the Flash 156 Flash Characteristics in Each Exposure Mode Using the Flash in b (Shutter Priority) Mode • When taking a moving subject, you can use the flash to change the blur effect. • Any desired shutter speed of 1/180 sec. or slower can be set for taking a flash photograph. • The aperture value automatically changes according to the ambient brightness. • The shutter speed is locked at 1/180 sec. when a lens other than a DA, DA L, D FA, FA J, FA, F or A lens is used. Using the Flash in c (Aperture Priority) Mode 5 • You can set the desired aperture value to take a flash photograph when you want to change the depth of field or shoot a subject farther away. • The shutter speed automatically changes with the ambient brightness. • The shutter speed shifts automatically anywhere from 1/180 sec. to a slow shutter speed (p.60) that reduces camera shake. The slowest shutter speed depends on the focal length of the lens in use. • The shutter speed is locked at 1/180 sec. when a lens other than a DA, DA L, D FA, FA J, FA or F lens is used. Using the Slow-speed Sync You can use Slow-speed Sync in . (Night Scene Portrait) of Picture mode or b (Shutter Priority) mode when shooting portraits with the sunset in the background. Both the portrait and the background are captured beautifully. • Slow-speed Sync slows the shutter speed. Use the Shake Reduction function or turn off the Shake Reduction function and use a tripod to avoid camera shake. The picture will also blur if the subject moves. • Slow-speed Sync shooting can also be performed with an external flash.