345Technical NotesShooting (P, S, A, M)Flicker or banding appears during live view or movie recording: Choose an optionfor Flicker reduction that matches the frequency of the local AC powersupply (0 268).Bright bands appear during live view or movie recording: A flashing sign, flash, orother light source with brief duration was used during live view or movierecording.Menu item can not be selected: Some options are not available in all modes.Shutter-release disabled:• Non-CPU lens is attached: rotate camera mode dial to M (0 308).• Mode dial rotated to S after shutter speed of “Bulb” or “Time” selectedin mode M: choose new shutter speed (0 121).• If white-balance bracketing is active, shutter release will be disabledand viewfinder exposure-count display will flash if there is insufficientspace on memory card to record all images in bracketing sequence.Insert new memory card.Full range of shutter speeds not available:• Flash in use (0 106).• When On is selected for Movie settings > Manual movie settings inthe shooting menu, the range of available shutter speed varies with theframe rate (0 169).Can not select desired aperture: Range of available apertures varies with lensused.Colors are unnatural:• Adjust white balance to match light source (0 140).• Adjust Set Picture Control settings (0 155).Can not measure white balance: Subject is too dark or too bright (0 147).
