For reference, all indications are displayed in the illustration.123457891011612131415161714LCD panel1 Flash mode (p. 26)2 Wireless remote flash (p. 60)In the wireless multiple flash mode,the SB-600 is set as a remote flash unit,which fires in sync with the master flash unit.3 Sound monitor (p. 65)When the SB-600 is set as a remote flash unit,you can monitor its operation by listening tothe beeping sound.4 Compatible with CLS* (p. 5)The SB-600 is connected to camerascompatible with CLS*.5 Zoom-head position (p. 40)6 Channel (p. 61)Represents the communication channelnumber through which the master and remoteflash units exchange data in the AdvancedWireless Lighting mode.7 Auto FP High-Speed Sync (p. 48)The SB-600 automatically fires at fastershutter speeds exceeding the cameras syncshutter speed.8 Flash output level (p. 34)9 Flash output-level compensation(p. 44)10 Underexposure in TTL auto flash(p. 29)11 Flash output-level compensationvalue (p. 44)Underexposure value in TTL autoflash (p. 29)Indicates the underexposure value, showingthat the light might be insufficient in the TTLauto flash mode.Flash output level in Manual flash(p. 34)12 Group (p. 61)Represents the group of each remote flash unitin the Advanced Wireless Lighting mode.13 Control buttons being locked(p. 12)Control buttons (except the ON/OFF andFLASH buttons) are locked.14 Red-eye reduction (p. 46)15 AF assist illuminator (p. 50)16 LCD panel illuminator (p. 15)Pressing any control button turns on the LCDpanel illuminator.17 Standby function (p. 21)