1. Aperture: Generally, apertures of f/2.8-f/5.6 are considered ideal for portrait photography. The wider aperture allows you to create a shallow depth of field (blurred background) and make the subject stand out. 2. Shutter Speed: If you’re shooting in low light conditions, a slow shutter speed may be necessary to capture plenty of light. Generally, shutter speeds of 1/125sec or faster (depending on your lens) are the best for portrait photography. 3. ISO: Depending on the available light, you should select the lowest ISO possible to avoid grain and noise. 4. Focus Mode: Auto-focus (AF) is the most common focus mode for portrait photography as it will ensure you’re capturing sharp photos. 5. White Balance: Set the white balance to match the type of lighting you’re shooting in, such as Daylight for natural lighting or Shade for overcast lighting.