weapon in many portrait photographer’s kit bag is a glass prism. They. Hold one in front of your lens to incorporate fantastic reflections, blur and distorted colours and use a wide aperture for a shallow depth of field to make it artistically blurred. Just be sure to hold it as close to the lens as you can and move it into position until you get a good composition where the model’s face is unobstructed and sharp. Be sure that you wipe off any fingerprints on the prism with a microfibre cloth to stop them from appearing in shot.