Pentax K100D User Manual - Page 164

162 Using High-Speed Flash Sync Mode With the AF540FGZ or AF360FGZ, you can discharge the flash to take a picture at a shutter speed faster than 1/180 second. High-speed flash sync can be used with the flash attached to the camera, or wireless. Attaching and Using the AF540FGZ or AF360FGZ on the Camera 1 Remove the cover of the hot shoe and attach the external flash (AF540FGZ or AF360FGZ). 2 Turn the mode dial and set the exposure mode to b or a. 3 Turn on the camera and the external flash. 4 Set the external flash sync mode to HS b (high-speed flash sync). 5 Confirm that the external flash is fully charged and then take the picture. • The b will light in the viewfinder when the flash is ready (fully charged). 5 • High-speed flash sync is only available when the shutter speed is faster than 1/180 sec. • High-speed flash sync is not available when the exposure mode is set to p (Bulb). Function Reference Using in Wireless Mode You can shoot using the flash without connecting the camera and flash with a cord by using two external flashes (AF540FGZ or AF360FGZ). The High-speed sync mode is also available in wireless mode. Be sure to set the two external flashes (AF540FGZ or AF360FGZ) to the same channel. See the AF540FGZ or AF360FGZ operating manual for details.