13Take pictures.You should be at least 60 cm (2 ft.) from your subjectwhen using the flash. If the flash is raised in continuouslow speed (CL) or continuous high speed (C H) releasemodes, only one photograph will be taken each timethe shutter-release button is pressed.To preview the effects of the flash,press the depth-of-field previewbutton. The camera will emit amodeling preflash (pg. 35).Lower the flash.Press the flash gently downwarduntil it clicks into place.34Flash Sync SpeedIf [1/320 s (Auto FP)] is selected for Custom Setting e1 ([Flashsync speed], pg. 34), the built-in flash and optional SB-800,SB-600, and SB-R200 flash units can be used at shutter speedsas fast as 1 / 320 s.Shutter speed [Flash sync speed] set to [1/320 s (Auto FP)]Built-in flash Optional flash unit1 / 8,000–1 / 320 s — Auto FP1 / 320 –30 s Flash sync