Portrait Lighting Patterns: Rembrandt, Split, Loop and Butterfly

Photograph the same person, with the same lens, at the same settings. Then move the light forty centimetres to one side. You are looking at a different human being: the nose reads a different length, the cheekbones a different sharpness, the whole face a different width.

Photographers talk endlessly about whether light is hard or soft. That matters — we covered that axis on its own in hard light vs soft light. But in portraiture, what actually shapes a face isn’t the quality of the light, it’s the direction. Soft light coming from a bad angle still makes a bad portrait.

This guide is about that second axis: where the light comes from, what shadow pattern it leaves on the face, and what that pattern is called. How the body, hands and head are arranged is a whole different axis; we covered that separately in posing for portraits.

The two angles that set the pattern

Two numbers describe the position of a portrait light:

• Horizontal angle: how many degrees the light sits off the camera–subject axis (0° = straight on, 90° = fully to the side).
• Vertical angle: how far above the subject’s eye level the light sits.

All five classic patterns are just different combinations of those two numbers. No studio, no softbox, no expensive strobe required; the only thing you need is to learn to see the angle.

And the easiest way to read a pattern is to look at one detail: where does the nose shadow fall?

Butterfly: light straight ahead and high

The light sits on the camera–subject axis, directly in front of the face and clearly above eye level. The nose shadow drops straight down and leaves a small symmetrical mark under the nose shaped like a butterfly’s wings. That’s where the name comes from; it’s also known as “Paramount lighting” after the old Hollywood studios.

• What it does: Renders the face symmetrically, puts a thin shadow under the cheekbones to sculpt them, and relatively flattens the skin.
• Who it suits: Symmetrical faces with defined cheekbones. It’s the default of classic beauty and fashion portraiture.
• The risk: Raise the light too far and the eye sockets go dark and the catchlight disappears. On a long nose the shadow stretches down and can reach the lip.

Loop: the safest default

Move the light 30–45° horizontally and roughly 30–45° up. The nose shadow no longer falls straight down; it draws a small loop out and down onto the cheek — but it does not touch the cheek’s own shadow. That small bright gap between them is the signature of the pattern.

• What it does: Gives the face volume, doesn’t exaggerate the nose, keeps the shadow under control.
• Who it suits: Almost everyone. When you’re not sure, start here.
• The risk: Practically none. That’s exactly why it’s the default portrait pattern.

Rembrandt: a triangle of light on the cheek

From the loop position, move the light a little further round and a little higher. At some point the nose shadow merges with the cheek shadow, leaving an isolated little triangle of light on the shadowed cheek, just below the eye. That’s the pattern in the painter’s portraits.

The classic measure of the pattern is genuinely useful:

• What it does: Produces a dramatic, dimensional, cinematic portrait.
• Who it suits: Faces with character, male portraits, frames with a story.
• The risk: The shadow area is large; it emphasises skin texture and blemishes.

Split: the light that halves the face

The light comes round to 90° horizontally — fully to the side — and sits near eye level. One half of the face is lit, the other half is in shadow, with the border running down the centre of the nose.

• What it does: The most dramatic pattern, and the one that reads hardest. It opens up texture and character all the way.
• Who it suits: Portraits with a severe expression, and black and white work. Once colour is gone, contrast is the only device left — we covered that at length in black and white photography.
• The risk: It’s unforgiving. Texture, asymmetry and tiredness cannot hide in this light.

Broad and short lighting: the choice layered on top

This fifth one isn’t a separate pattern — it’s a second decision that applies to all of the above. When the face is turned three-quarters to the camera, the two cheeks occupy different amounts of the frame:

• Short lighting: the light illuminates the cheek further from the camera. The broad, near cheek falls into shadow. It slims the face and adds depth and dimension. This is the default choice in portraiture.
• Broad lighting: the light illuminates the broad cheek nearer the camera. It widens and flattens the face.

Height: the most skipped setting

Everyone thinks about the horizontal angle; most people forget the vertical one. Yet moving the light up and down at the same horizontal position changes the pattern completely.

• Below eye level: Shadows run upward. Campfire and horror-film light. Wrong unless it’s deliberate.
• At eye level: Flat, no volume. Not much use outside the split pattern.
• 30–45° above eye level: The sweet spot. Shadows fall in their natural direction, downward.
• Too high: Eye sockets go dark, the gaze dies, the catchlight vanishes.

A practical limit: the nose shadow should not reach the upper lip. If it does, the light is either too high or too far round — back one of them off.

The catchlight is the pattern’s signature

The eye is a small, glossy sphere; it reflects the light like a mirror. That reflection is called a catchlight, and it’s the fastest way to read how a portrait was lit.

The classic placement, read like a clock face, is 10–11 or 1–2 o’clock. If the catchlight sits low, the light was below eye level. If there’s no catchlight at all, the light was either too high or the face turned too far from it — and the eyes look dead.

Doing all of this with one window

None of these patterns needs a studio. A window is already a large, soft, free light source. The only difference is this: you can’t move the window — you can move the subject and yourself.

What sets the pattern isn’t the light’s position, it’s the angle between light, face and camera. If the subject faces the window you get something close to butterfly; a quarter turn gives you loop, a half turn Rembrandt, and standing side-on to the window while you shoot from the front gives you split. The subject turns one step, you walk two; the pattern changes.

Distance from the window is a separate control, and it changes two things at once:

• Close to the window: The source looks large relative to the face, so shadow edges soften. But the light also falls off fast: the gap between the near and far cheek widens, and the background goes dark. Soft but contrasty.
• Far from the window: The source shrinks, so shadow edges harden. In exchange the light spreads more evenly and the background doesn’t drop away as much. Harder but more balanced.

We collected ways of holding your settings together indoors in low-light shooting without flash, and the order in which to pick aperture, ISO and shutter for a portrait is in natural light portraits.

Filling the shadow side: lighting ratio

Once the pattern is set, one decision remains: how dark should the shadow be?

The difference in stops between the lit cheek and the shadowed cheek gives you the lighting ratio:

• 1 stop (2:1): Soft, commercial, safe. Ideal for corporate portraits and weddings.
• 2 stops (4:1): Clear volume, still natural. The sweet spot for general-purpose portraiture.
• 3 stops and beyond (8:1): Dramatic. The shadow side closes down almost completely.

To open the shadow, a white card, a light-coloured wall or even a white sheet will do — hold it on the subject’s shadow side, just outside the frame. The closer it gets, the more fill you add. If you’d rather do it with flash, we covered bounce and fill in the flash photography basics guide.

Meter for the lit cheek, not the shadow. We covered when spot metering is the right tool in metering modes.

Choosing the pattern for the face

There’s no such thing as the correct pattern — only the correct pattern for that face.

• Round, full face: Short lighting plus loop. The shadow pulls the cheek back.
• Thin, narrow face: Broad lighting. It fills the face out.
• Pronounced texture, scars, older skin: Avoid split and Rembrandt; raking side light scans the texture and exaggerates it. Use loop or butterfly with a large, more frontal source.
• Long nose: Bring the light closer to the camera axis and lower it; the nose shadow shortens.
• Glasses: If there are reflections, raise the light a little and move it further round, and ask the subject to tilt the arms of the glasses down slightly.
• Asymmetrical face: Use short lighting so the fuller side sits in shadow.

Lens choice changes the effect too: 35mm and 85mm don’t render the same face the same way under the same light. We compared what focal length does to a portrait in choosing a portrait lens.

Push the light all the way round to 180° and you reach the far end of this axis: you’re no longer in pattern territory but in silhouette, rim light and flare — which we covered separately in backlit portraits.

Common mistakes

• Setting the light and never turning the subject: The pattern lives in the angle, not the light’s position. Turning the subject 15° is often more effective than moving the light a metre.
• Forgetting height: Setting the horizontal angle and never thinking about the vertical one is the single most common portrait error.
• Not controlling the catchlight: An eye with no catchlight looks dead, and the frame stays cold even when it’s technically flawless.
• Applying one pattern to every face: Falling in love with Rembrandt and using it on everyone is brutal on textured skin.
• Turning the subject away from the light: If the face turns away, the nose shadow runs past the cheek to the edge of the face and falls apart. The face should always look toward the light.
• Filling until the pattern disappears: Over-filling the shadow side erases the pattern you just built. Fill opens a shadow, it doesn’t delete it.
• Learning the pattern and forgetting the expression: A technically perfect Rembrandt does nothing for a face that isn’t relaxed. Light is half the frame; the other half is the person in front of you.