Frontal lighting
Place a subject in the entrance of a window or door and have them move backwards slowly to evaluate how the light falls on their face. You want to stop them at the point where their skin is luminous and shadowless. Position yourself in front of them, with the light behind you.
EXPOSURE
Set your camera to aperture-priority mode and use spot metering to expose for the evenly-lit skin, this should automatically darken the background as your subject is closer to the light. Keep an eye on your shutter speed though and, if necessary, increase the ISO to give a shutter speed that eliminates camera shake.
FOCUS
Set your camera to shoot in single-point AF mode and position the AF point over one of your subject’s eyes. By using a wide aperture such as f/2.8 and focusing on a eye, whilst keeping the camera parallel to the face, you’ll get a beautiful fall-off in focus. If you pose them at an angle, you’ll need to stop down your aperture to ensure both eyes are rendered sharp.
BACKGROUND
Often when front lighting a portrait, you’re at the mercy of your background. Try to remove clutter but embrace scenes that add context to your image by not overly darkening them. For a cleaner finish, use seamless paper or poster board behind your subject.