240 Menu Guide > 1 The Movie Shooting MenuReduce vignetting in movies (0 182). Select Same as photosettings to use the option currently selected for photos.Reduce diffraction in movies (0 182).Reduce barrel and pin-cushion distortion in movies (0 182).Reduce flicker and banding when shooting movies underfluorescent or mercury-vapor lighting. Choose Auto to allow thecamera to automatically choose the correct frequency, ormanually match the frequency to that of the local AC powersupply.Vignette ControlG button ➜ 1 (movie shooting menu)Diffraction CompensationG button ➜ 1 (movie shooting menu)Auto Distortion ControlG button ➜ 1 (movie shooting menu)Flicker ReductionG button ➜ 1 (movie shooting menu)D “Flicker Reduction” in the Movie Shooting MenuIf Auto fails to produce the desired results and you are unsure as to thefrequency of the local power supply, test both the 50 and 60 Hz optionsand choose the one that produces the best results. Flicker reductionmay not produce the desired results if the subject is very bright, inwhich case you should try choosing a smaller aperture (higher f-number). To prevent flicker, select mode M and choose a shutter speedadapted to the frequency of the local power supply: 1/125 s, 1/60 s, or 1/30 sfor 60 Hz; 1/100 s, 1/50 s, or 1/25 s for 50 Hz.
