56Chapter Function DescriptionSetting theresolution andimage qualityNoise reduction It can be set to reduce the noise of pictures. (High ISO NR, Long Term NR) 52Taking a picture inthe dark placeUsing an externalflash(optional item)The A-TTL auto flash mode can be used by using an external flash unit (SEF 20A orSEF 42A). 57Focus changeAF priority shot The AF priority function is the function that the shutter does not work if the focus isnot set appropriately when the user sets the focus manually. (Off, On*) 59AF assist light You can use the auto focus function more accurately in the dark place by using theAF lamp. (Off, On*) 60Finding more about the extended shooting functionFor more detailed information, refer to the CD-ROM User manual ( ).* Default value