Tutorials Video

Portrait Lighting With One Light and a Reflector

Beginner · ~20 min

Overview

Almost every portrait lighting setup worth knowing can be built from one light and something to bounce it back. The number of sources is rarely what separates a good portrait from a flat one, placement is. This guide covers where to put a single source relative to the face, what changes as you move it, and the four classic patterns that result. Once these are automatic, adding a second light becomes a deliberate choice rather than an attempt to fix a placement problem.

What You Need

One light source: a strobe, an LED panel, or a window
Something to diffuse it: a softbox, an umbrella, or a thin white curtain
A reflector, or a piece of white foam board, or a white wall
A camera with manual exposure control
A subject willing to sit still for ten minutes
Enough room to move the light around the subject

Steps

Start with the light at 45 degrees and slightly above

Place the source about 45 degrees off the camera axis and a little above eye level, angled down. This is the default for a reason. It produces a defined shadow on the far side of the nose and models the face without flattening it. Everything else in this guide is a variation on moving from here.

Get the source close, then diffuse it

Softness is a function of how large the source appears from the subject's position, which means a modest softbox close in is softer than a large one far away. Move it as close as you can without entering frame. This single adjustment does more for the quality of the light than buying a bigger modifier.

Add the reflector on the shadow side

Place the reflector opposite the light, angled to bounce spill back into the shadow. Move it in and out while watching the shadow side: closer lifts the shadow and softens the contrast, further back deepens it. The reflector is your contrast control, and it is the reason a second light is usually unnecessary.

Build the four patterns by moving the light

From the starting position: raise it until the nose shadow touches the cheek shadow and you have loop becoming Rembrandt, recognisable by the small triangle of light under the far eye. Move it further round to about 90 degrees for split lighting, lit on one side and shadow on the other. Bring it front and high for butterfly, with a small shadow directly under the nose.

Watch the catchlights

The reflection of your source in the subject's eyes tells you where the light actually is and how large it reads. Eyes without catchlights look lifeless, which is one of the clearest tells of a portrait lit from too far away or too far to the side. If they are missing, bring the source forward and closer.

Set exposure for the lit side and let the shadow fall

Expose so the bright side of the face sits where you want it and accept that the shadow side is darker. That difference is the whole point. Chasing an even exposure across both sides is how you end up back at flat, frontal light. Check the histogram rather than the screen, and protect the highlights on the forehead and nose.

Pro Tips

Move the light, not the camera. Changing the light changes the portrait. Changing the camera position only changes the framing.
A north-facing window with a thin curtain is a large, soft, free source that professionals use deliberately.
Feather the light, aim its edge at the subject rather than its centre, for a gentler falloff across the face.
If the light looks harsh, it is too small or too far away. Those are the only two variables.
Shoot a frame of each pattern on the same subject once, and keep them. It is a faster reference than any diagram.

Knowledge Base

What You'll Learn

This is the foundational lighting setup for stills, and the patterns below are the vocabulary photographers use to describe portraits. Below: why one light is usually enough, and how these patterns map onto how a face reads.

Why One Light Is Usually Enough

Multi-light setups are common in tutorials because they are visually impressive to diagram, not because they are usually necessary. A single source plus a reflector gives you control over the two things that actually matter: the direction the light comes from, and the ratio between the lit and shadow sides.

Adding lights adds shadows. Each new source casts its own, and reconciling them takes more skill than working with one. Beginners who add a second light usually do so to eliminate the shadow the first one created, which removes the modelling that made the portrait look three-dimensional.

The legitimate reasons for a second source are specific: separating the subject from a dark background with a rim or hair light, or lighting the background independently. Both are additions to a working key, not fixes for one.

Reading the Patterns on a Face

The four patterns are not arbitrary styles. They describe how much of the face is in shadow and where the transition falls.

Butterfly is frontal and high, producing a small symmetrical shadow under the nose. It is flattering across most faces and reads as polished and commercial.

Loop moves the source slightly off-axis so the nose shadow forms a small loop on the cheek. It is the most broadly used portrait pattern because it models the face while staying unobtrusive.

Rembrandt pushes further until the nose and cheek shadows meet, leaving a small lit triangle under the far eye. It is more dramatic and adds apparent structure.

Split lights one half and leaves the other in shadow. It is the most dramatic and the least forgiving, and it suits character portraits rather than flattering ones.

Where This Fits

This guide covers one specific part of photography. The wider picture, exposure, focus, light, and composition for stills, including what does and does not transfer from shooting video, is in Still Photography Fundamentals: Composition, Exposure, and Light, which frames the discipline as a whole and links out to the detailed guides underneath it, including this one. If you are starting from scratch rather than solving a specific problem, read that first and come back here.

FAQ

Q: Do I need studio strobes to start?
A: No. A window with a diffusing curtain is a large, soft source that costs nothing, and a single LED panel covers most situations after that. Strobes matter when you need to overpower daylight or freeze motion. For seated portraits they are convenience rather than necessity.

Q: Why do my portraits look flat?
A: Usually the light is too close to the camera axis, so shadows fall behind the subject where you cannot see them. Move the source further round to one side until you see a defined shadow on the far side of the nose. That shadow is what creates the impression of depth.

Q: What can I use instead of a reflector?
A: White foam board, a white wall, a bedsheet, or a piece of card. The reflector only needs to be a bright, matte surface you can angle. Silver surfaces bounce more light with harder quality. White is softer and generally more flattering for faces.

Q: How do I know if the light is soft enough?
A: Look at the edge of the shadow under the nose or chin. A gradual transition means soft. An abrupt, clearly defined edge means hard. If you want softer, move the source closer or make it larger. Those are the only two levers.