I'm going to shoot the last roll of film that came free with my camera (Kruger brand, 400 speed, color). Last time I got gray-looking photos with poor contrast and color saturation. I shot that indoors on a cloudy day. Tomorrow I'm going to shoot outdoors, around 5:00PM (it should be sunny.) These are going to be portraits, fairly close-up, so I want a narrow depth of field (lowest f-stop on my lens is 5.6). I also want my colors to pop as much as possible (this may vary, I understand, depending on the film). What should my settings be in terms of f-stop, shutter speed, etc? Or should I just stick with the portrait pre-set for the time being?