60TECHNICAL INFORMATION/PHOTOGRAPHY TECHNIQUES continuedReady-Light Indication in the ViewfinderWhen the Nikon FA is used with Nikon Speedlights SB-15, SB-16B, SB 18, SB 19, etc, the FA's ready-light LED in the viewfind-er lights up when the flash is recycled. This way, you're easilyinformed of flash reediness without having to take your eyeaway from the viewfinder. Depending on which Nikon flash unitis attached, the same LED blinks to warn of insufficient flashoutput. incorrect setting of the flash unit or incorrect setting ofthe FA. The more detailed information, refer to the flash unit’sinstruction manual.Relationship Between Camera’s Meter,Ready-Light Indication and Shutter SpeedShootingModeSelectorP,S,A*AllexceptM250and Blight up 250 1/250 Does notlight up-M1/4000-1/500seclight up M250** 1/250 Does notlight up -1/250-1seclight up as set as set Does notlight up -P,S,A,M M250, B - - - light up as setShutterspeeddialsettingCamera’s exposure meterOn OffReady-light LCDindicationActualshutterspeed(sec.)Ready-lightActualshutterspeed* Because automatic exposure modes are cancelled assoon as the flash unit is turned on, you should determinethe proper aperture beforehand.** + and/or - indication on M disappears as soon as the flashunit is turned on.