188gReduce flicker and banding in the display and in movies whileshooting under fluorescent or mercury-vapor lighting. Choose afrequency which matches that of the local AC power supply.When a photograph is taken or a movie is recorded, the cameranames the file by adding one to the number of the previous file(0 145). If the current folder is numbered 999 and containseither 999 photographs or a photograph numbered 9999, theshutter-release button will be disabled and no further photo-graphs can be taken. To reset file numbering to 0001, select Yesfor Reset file numbering and then either format the currentmemory card or insert a new memory card.Flicker ReductionA Flicker ReductionIf you are unsure as to the frequency of the local power supply, testboth options and choose the one that produces the best results. Flickerreduction may not produce the desired results if the subject is verybright, in which case you should select mode A or M and choose asmaller aperture (higher f-number).Reset File Numbering