Hi I using nikon D60 and have this problem occur everytime i take night shot. I check my iso setting to be 100 but after i took the shot, the picture will be in iso 1600 can somebody explain why is this happening?? thanks
if the ISO 1600 is appeared in RED color then you must had switched on the auto ISO... (for PASM mode only... can't remember if pre-programmed modes turn Red when changing ISO setting)
if it's white then i think you need to go back to Nikon...