Hi, I want to take some shots to get blur picture and freeze the moving subject in sunny day. Okay i hv basic knowledge like to blur i need lower shutter speed like 1/15, 1/8. and to freeze the picture i have to use higher shutter speed like 1/1000, 1/2000. But in this both case i not sure what will be my correct aperture. And one more thing i hv aperture priority camera and i am setting my shutter speed by changing my film speed. For example: i am taking my picture at f11 @ 1/500 this is my correct exposure now i want to blur the picture if i reduce my shutter speed to lower one it doesn't affect my picture. I don;t want to get my picture overexposed while trying to take blur picture. regards!