Portrait Light From One Window
A north-facing window and a white card can do most of what a studio does. The skill is in where you put the person.
Soft light is large light
Light looks soft when its source is large relative to the subject: shadows fade gradually instead of ending in a hard edge. A window is a big source. Photographers recreate it indoors with a softbox, which spreads light through a diffusing material, or with an umbrella that bounces it.
Place the subject, not the light
- Sit the person beside the window, turned partly towards it.
- Move them closer for softer, brighter light, further away for more contrast.
- Watch the shadow side of the face as you turn them a little at a time.
The Rembrandt triangle
Rembrandt lighting is a standard portrait technique named after the Dutch painter. Its signature is a small illuminated triangle under the eye on the less lit side of the face. It can be made with one light and a reflector, which is why it suits a single window: turn the subject until the triangle appears.
Fill the shadows
A sheet of white card, foam board or a bedsheet on the shadow side bounces some light back and opens the shadows without flattening the face. Move it closer for more fill.
Watch the eyes
The reflection of the window in the eyes, the catchlight, brings a portrait to life. If you cannot see it, the person is turned too far from the light.
Ask before you photograph anyone, and ask again before you publish. A good portrait starts with consent.
Developed 2026-10-22