60Aperture control in Manual 27• Front wheel • Rear wheelSelects which control wheel changes theaperture setting when in Manual expo-sure mode.Front wheel selects the front controlwheel to change the aperture setting.Rear wheel selects the rear control wheelto change the aperture setting.Extra mirror-delay 31• 50ms • 5 ms • 10 ms • 20 ms • 50 ms •100 ms • 200 ms • 400 msExtends the delay period between themirror being raised and the openingof the lens shutter thereby reducing theeffect of vibration on longer exposuretimes.Aperture indication 30• Normal • Light meterAllows choice of aperture indicationdisplay (in Manual mode only).Normal selects conventional display (f5.6,f8, etc)Light meter selects ‘light meter’ typedisplay (f5.6⁰, f8.⁵, etc)Interval timer initial delay 29• None • 2s •10s • 60s • Interval timeAllows an initial delay before the firstexposure of an interval timer functionoperation.Low flash warning 28• On • OffControls the display of the ‘Low flash’warning message and triangle.ON enables the function.OFF disables the function.ISO / WB menu 32• Menu • Flash • AF • DriveRe-assigns the Flash, AF or Drive buttonon the grip to directly access the ISO /White balance setting screen.