Photography Lighting for Beginners: The Complete Guide

Photography lighting is the light that falls on your subject and the way your photo records it, and it can be described by four things you can see and change: how bright it is, how hard or soft it is, which direction it comes from, and what color it is. It matters more than your camera or lens, because the camera can only record the light that is there, and the same subject can look flat, sculpted, warm, cold, calm or dramatic depending on that light alone.

This page gives you a working model of light rather than a list of rules: how to read light from the clues in any photograph, why a small light is hard and a big one soft, how fast light fades with distance, why shiny things flare, and how to build a look with one light and a reflector before you ever buy a second. The key ideas are shown in real photographs, with the settings each was taken at.

The four properties of light

Every light source, natural or artificial, sits somewhere on four separate scales at once. Naming them separately is what turns “I like this light” into “I can find this light again, or build it.”

• Intensity. How much light reaches the subject. It decides your exposure settings, and it changes with distance from the source.
• Quality. Whether shadows have crisp edges (hard light) or gradual edges (soft light). It is set by how large the source looks from the subject, not by how bright or warm it is.
• Direction. Where the light comes from relative to the subject and the camera. It decides where shadows fall and how much shape and texture show.
• Color. Where the light sits from warm orange to cool blue, measured in kelvin, and how your white balance treats it.

The properties are independent. Noon sun in a clear sky is bright, hard, high and close to neutral. A candle is dim, hard, low and very orange. An overcast sky is bright enough for fast shutter speeds, soft, nearly directionless and slightly cool. Golden hour sun is warm but still hard. Most confusion about light comes from treating two of these as one, such as assuming warm light is soft or that soft light must be dim.

How to read the light in any photograph

You can work out the light in a photo, yours or anyone else’s, from four clues. Learning to read them is the fastest way to learn lighting, because every photo you look at becomes a lesson.

1. The edge of the shadows tells you the size of the source. A sharp line between light and shadow means a small source. A long, gradual blend means a large one. No shadows at all means the light came from almost everywhere, like fog or a cloudy sky.
2. The direction of the shadows tells you where the source was. Shadows point away from the light. Long shadows mean a low source, short ones a high source.
3. The catchlights in eyes and shiny surfaces show the source itself. A square catchlight is a window or softbox, a round one an umbrella or beauty dish, a ring a ring light, a pinpoint a bare flash or the sun. Its position in the eye shows where the light was.
4. The color cast tells you the color of the light. Whites and grays that should be neutral show it best: orange under bulbs and low sun, blue in shade and twilight.

The camera settings add a fifth clue: intensity. The sunny 16 rule says that in clear midday sun, f/16 at 1/100 second and ISO 100 is about right. Compare any photo’s settings with that and you know roughly how many stops less light there was. Here are the five photos on this page read that way. Each stop is half the light.

• Mono Lake tufa (top of page): Shadow edges say: No lit side faces the camera, so the subject is a black shape against the light. Shadow direction says: The bright sky is behind the subject, so it is backlight. Settings say: 13 s, f/22, ISO 100, exposed for the sky: about 9.4 stops, or nearly 700 times, less light than midday sun.
• Shadows of the Forest: Shadow edges say: Razor-sharp branch shadows: a small source, the sun. Shadow direction says: Long shadows: a low sun from one side. Settings say: 1/100, f/8, ISO 100: direct sun, about 2 stops below the sunny 16 setting, a normal result for low sun.
• Sand dunes at dusk: Shadow edges say: A crisp shadow line along the ridge: still a small source. Shadow direction says: Low sun from the side, raking across the sand. Settings say: 1/40, f/8, ISO 100: about 3.3 stops below midday sun.
• Boathouse in snow and fog: Shadow edges say: No shadow edges anywhere: a source as big as the sky. Shadow direction says: No clear direction at all. Settings say: 1/1250, f/2.8, ISO 130: under 2 stops below midday sun, so soft is not the same as dim.
• Toronto at dawn: Shadow edges say: The sky lights the scene with no shadows; the buildings make their own light. Shadow direction says: None from the sky; each window is a source. Settings say: 30 s, f/8, ISO 50: about 12.5 stops below midday sun.

The photographer’s choice of brightness moves these numbers a little (a silhouette is exposed for the sky, not the rocks), so read them as rough measures of the light.

Hard and soft light: it is the apparent size of the source

The single rule behind hard and soft light: the larger the light source looks from the subject, the softer the shadow edges. A small source lights each point from one direction, so a shadow has a clean edge. A large source lights each point from many directions at once, so the edge of a shadow is lit partly from some of them and blends gradually into the light.

“Looks” is the key word. What matters is the angle the source fills as seen from the subject, which depends on both its size and its distance. You can calculate it: the angle is twice the arctangent of half the width divided by the distance.

Two things follow. First, the sun is hard because it looks tiny, half a degree across. It is enormous, but at 150 million kilometres it fills less of your view than a fingernail at arm’s length. Clouds soften it because they, not the sun, become the source, and they fill the sky. Second, moving a light changes its hardness as much as changing the modifier. The same softbox goes from very soft at 1 m to fairly hard at 4 m.

A diffuser softens light only when it becomes a bigger source than the one behind it. A large panel held close to a face in sunlight works because the panel, a metre or more across, is now the source. A small cap or sheet stuck on the front of a flash barely changes the shadows on a subject a few metres away, because the source is still a few centimetres across. It does scatter some light onto nearby walls and ceilings, which is where any softening indoors comes from.

Warm light is not soft light, either. Low evening sun is warmer than midday sun, but in a clear sky it is still the same half degree source and still casts sharp-edged shadows. The dune below shows both at once.

Neither is better. Hard light shows texture, shape and bold graphic shadows, and makes skin texture more visible. Soft light is forgiving on faces, but with nothing to shape it, it looks flat.

Want to change the hardness of the light you already have? Hard light vs soft light covers moving the source, bouncing it, and scrims for sun.

Direction of light: where the shadows fall

The direction of light decides where shadows fall, and shadows are what show shape. Think of it as an angle measured from the camera.

Front light comes from beside the camera. It fills every surface the camera sees, so shadows fall behind the subject where you cannot see them. It is easy to expose and shows color well, but it looks flat because there is no shadow to show form. On-camera flash is front light.

Side light comes from roughly 90 degrees to one side. One half of the subject is lit and the other falls into shadow, which gives strong shape and depth. It also shows texture best, for a measurable reason: light arriving at a grazing angle spreads across more surface, so a flat area gets less of it. At 60 degrees from straight on, a surface gets half the light (one stop less); at 80 degrees, less than a fifth. Every bump that faces the light catches far more than the hollow beside it, so sand ripples, bark, stone and fabric show up in relief. How extreme the split looks depends on hardness and on how much fill reaches the shadow side.

Test your eye on direction: pick the photo below that uses more directional light, and look at where its shadows fall.

Which photo uses more directional light?

A B

Backlight comes from behind the subject, toward the camera. With no light on the front, the subject becomes a silhouette, as the tufa towers at the top of this page do. Expose for the subject instead, or add fill, and you get a glowing rim along hair and edges that separates the subject from the background; in studio work a hair light above and behind does the same job. The camera’s meter is easily fooled by the bright background, so expect to add exposure or meter the subject directly.

Losing the subject when you shoot toward the light? Backlighting in photography covers exposing for the subject or the background, flare, and focusing into the light.

Top light comes from straight above, like midday sun or ceiling lights. It fills eye sockets with shadow and puts shadows under the nose and chin. It is hard on faces but can suit overhead views and some architecture.

Under light comes from below. People almost never see faces lit that way, so it reads as eerie or theatrical. A white reflector low in front of a subject is a mild, useful version that lifts shadows under the chin.

Often the easiest way to change direction is to move the subject, not the light. Turn a person a quarter turn toward a window, or walk around a building until the sun rakes across its face instead of hitting it head on. Outdoors you can also wait: in the hours around midday the sun is high everywhere, and as it drops toward the horizon it becomes side and back light. The golden hour calculator gives the times for your place and date, which vary a lot with latitude and season.

Intensity and falloff: how fast light fades

Light from a small source spreads out as it travels, so its brightness drops with distance. The inverse square law puts a number on it: twice as far away, a quarter of the light, which is two stops less. What you actually see in a photo is the ratio between two distances, usually the subject and the background.

Each figure is the base 2 logarithm of the squared ratio of distances: 3 squared is 9, and 9 is 3.2 stops. Read the table as two tools. Bring the light close and the background falls away into darkness, which is how one lamp can make a black background in an ordinary room. Move the light back and the scene lights more evenly, at the cost of hardness, because the source now looks smaller. The sun is so far away that a few metres more or less make no difference, which is why daylight lights near and far things alike.

The same law works across a single subject. A softbox very close to a face lights the near cheek noticeably more than the far ear. Turning the light so its edge, not its centre, points at the subject evens that out, a technique called feathering.

Want to see falloff happen? The inverse square law page has a flash falloff tool: move the light and watch the face stay put while the wall behind it darkens.

Color temperature and mixed light

Light has color as well as brightness. Color temperature is measured in kelvin (K): lower numbers are warmer and more orange, higher numbers cooler and bluer.

Your eyes adjust to all of these and see white paper as white. The camera does not, so its white balance setting does the adjusting. Auto white balance does well under a single source. Set it yourself, or shoot raw and set it later, when you want to keep the warmth of a sunset or the blue of twilight instead of having the camera neutralize it.

Mixed light is several sources of different colors in one scene, such as a lamp-lit room with daylight from a window. No single white balance setting fixes both, and auto white balance cannot either; it picks a compromise. Your choices are to turn one source off, let one dominate by moving your subject toward it, match them with a gel on the flash, or keep the contrast on purpose, as in the city photo above, where the cool sky and warm windows are the point.

Want to set the kelvin yourself and see what it does? What is white balance has a tool for dragging kelvin and tint until the whites look white.

Shiny surfaces: why some light glares

Matte surfaces scatter light in all directions, so they look the same from anywhere. Shiny surfaces, such as glass, water, metal, glossy paint and oily skin, act partly like mirrors: light bounces off at the same angle it arrived. The bright reflection you see is a specular highlight, and it is really a picture of the light source.

Because of that mirror rule, glare depends mainly on the position of the light, not its size. If the light sits where a mirror in the subject’s place would show it to the camera, you get glare. Move the light a little higher or further to the side, or tilt the shiny surface, and the reflection slides out of the frame. That is the fix for glare on glasses: raise the light or tilt the frames slightly down, rather than making the light bigger. A bigger source does change the reflection from a hot spot into a broad, even sheen, which is why product photographers light glossy objects with large panels.

Building light: key, fill and ratios

Every lighting setup, from a window to a studio, is built from a few roles.

• Key light. The main source, which sets the exposure and the shadow pattern. Outdoors it is usually the sun, the sky or a window. It is not always the brightest light in the frame (a rim light can be hotter); it is the one that gives the subject its shape and tells the viewer where the light is coming from.
• Fill light. A weaker source, often just a reflector, that lifts the shadows the key makes. It goes on the shadow side, usually near the camera, not behind the subject. Keep it large and soft, because a small hard fill casts a second shadow of its own, and keep it dimmer than the key, or it becomes the key.
• Rim or hair light. A light behind the subject that outlines it against the background.
• Ambient light. Whatever light is already there before you add your own.

Fill does not have to be a light. A white reflector, a white wall or a sheet of foam board bounces the key back into the shadows; a silver surface bounces more and harder light, and a gold one warms the shadow side. Outdoors in sun, the bright ground and sky around a subject already act as fill, strongly on white sand or snow and hardly at all in a dark forest. When the sun is the key and the shadows are still too deep, fill flash adds the rest.

Light adds up. A reflector, a second lamp or a flash can only add light, never take it away, so fill always makes shadows lighter. To make a shadow deeper you have to remove light: block it with a black card on the shadow side, a technique called negative fill, or move away from bright walls that bounce light back in.

The balance between the lit side and the shadow side is the lighting ratio, and each doubling of the ratio is one stop. A 2:1 ratio means the lit side is twice as bright as the shadow side, one stop. 4:1 is two stops and looks clearly sculpted. 8:1 is three stops and looks dramatic, with deep, dark shadows.

One light and a reflector

One light is enough for nearly any look, and adding lights before you understand one tends to make photos worse, with crossed shadows and several catchlights. The classic portrait patterns all come from where you put that one light. See the portrait lighting setup diagrams for each one in detail.

• Butterfly. The light high and straight in front of the face, making a small shadow under the nose. It is a position, not a softness; a bare flash there gives hard butterfly light, a large softbox soft butterfly light.
• Loop. The light moved 30 to 45 degrees to one side and above eye level, so the nose shadow angles down toward the cheek in a small loop.
• Rembrandt. The light moved further round to the side, still above eye level, until the nose shadow joins the shadow on the far cheek and leaves a small triangle of light under the eye.
• Split. The light at 90 degrees, so half the face is lit and half is in shadow.

Which side of the face is toward the camera matters too. Broad lighting lights the side of the face turned toward the camera and makes a face look wider. Short lighting lights the side turned away and looks slimmer and more sculpted.

Want to build the triangle of light step by step? The Rembrandt lighting tutorial walks through a one-light setup, a window version, and fixes when the triangle will not close.

Three-point lighting adds a fill and a rim light to the key, the standard setup for interviews and video. Build it one light at a time: key alone, then fill until the shadows look right, then the rim. Turning lights on one at a time shows what each one does. The lighting diagram tool lets you sketch a setup before you build it. A softbox or umbrella makes any of these lights bigger and softer; a grid narrows the beam so it does not spill.

Window light: a large soft source in every home

A window with no direct sun coming through is a large, soft, directional source, the same thing a big softbox imitates. Windows that face away from the sun’s path (north-facing in the northern hemisphere, south-facing in the southern) get little direct sun and stay soft most of the day. Others work when a sheer curtain spreads the sun across the whole window, making the window itself the source.

Close to a 1 m window the light is very soft but falls off fast, so shadows are deeper; at 3 m the window fills about 19 degrees, harder and more even. Turn your subject to change direction: facing the window gives broad, even light; a 45 degree turn gives loop or Rembrandt shapes; side on gives split light. A white card on the far side fills; a black one deepens. Window light portraits covers it in depth.

Adding flash to the light you have

With flash in a scene that already has light, every photo is two exposures in one: the ambient light and the flash. Your settings move them differently.

• Shutter speed controls the ambient. A flash burst is shorter than any normal shutter speed, so slowing the shutter brightens the background without changing the flash on the subject. This holds up to your camera’s flash sync speed. Above it, high speed sync pulses the flash through the whole exposure, and then shutter speed cuts the flash too, just as it cuts continuous light.
• Flash power and distance control the flash. Turn it down or move it back to dim the subject.
• Aperture and ISO change both together.

A dependable routine: set the exposure for the background you want, then add flash and adjust its power until the subject sits naturally in the scene. Flash only freezes motion when it is much brighter than the ambient; at slow shutter speeds a moving subject leaves a blurred ghost from the ambient light around a sharp flash image, which you can use on purpose by dragging the shutter. Indoors, bounce flash off a ceiling or wall makes the wall the source, so it is larger and softer, and it looks like the room’s own light. Flash is close to daylight in color, so under warm bulbs an orange color correction gel on the flash makes it match the room.

Ready to take the flash off the camera so you can choose its direction? Off-camera flash covers triggers, placement and the first setups to try.

Which light suits which subject

There is no single best type of light for photography. The same midday sun that is cruel to a face makes a rock formation look solid and sculpted, and the flat overcast light that suits a bowl of fruit can make an open landscape look lifeless. Choose by what the subject needs to show.

• Faces: Light that tends to suit it: A large soft source 30 to 45 degrees to one side, such as a window, open shade or a softbox close in, with some fill. Why: Gentle shadows still show the shape of the face without exaggerating skin texture.
• Texture: stone, bark, sand, wood, fabric: Light that tends to suit it: Hard light at a low, raking angle from the side. Why: Grazing light puts every bump in relief.
• Landscapes and terrain: Light that tends to suit it: Low sun near the start or end of the day, from the side or behind. Why: Long shadows separate ridges and layers, and the light is warm.
• Shapes and outlines: Light that tends to suit it: Backlight, exposed for the bright background. Why: The subject becomes a silhouette, so only its outline matters.
• Forests, flowers, close-ups, food and strong color: Light that tends to suit it: Overcast sky or open shade. Why: No hot highlights or black shadows, colors stay saturated, and the scene’s contrast fits what the sensor can record.
• Glossy objects: Light that tends to suit it: Large panels placed where their reflection lands where you want it. Why: A big source turns glare into a broad, even sheen.
• Cities and lit buildings: Light that tends to suit it: Twilight, when the sky and the artificial lights are close in brightness. Why: The sky keeps its color and detail while the windows glow.

These are starting points, not rules. Hard light on a face can be exactly right for a gritty, graphic portrait, and soft light on a landscape can make it calm. The point is to choose the light on purpose, which usually means choosing the time, the place or the angle rather than a piece of equipment. Overcast light also tends to be brighter than people expect: bright cloud often still allows a handheld shutter speed at a moderate ISO.

Planning around the sun? Golden hour photography covers the warm, low light after sunrise and before sunset, and blue hour photography the twilight that follows.

What the light costs your camera settings

Light decides which settings you can use. In bright light you can choose any combination. In dim light every choice costs something: raise the ISO and get more noise, slow the shutter speed and risk blur, or open the aperture and lose depth of field. Adding light, or moving to where there is more, is often the better fix than any setting. The simulator below re-shoots real photographs with the settings you choose. It cannot move the light, but it shows what the light allows: switch to the low light scene and see what each setting costs, then change the white balance and watch the same light turn orange or blue.

Common mistakes and misconceptions about light

• “A big modifier always gives soft light.” Only when it is close. A 90 cm softbox at 4 m fills about 13 degrees and gives fairly hard shadows. Move it closer.
• “Diffusion always softens.” Only if the diffuser becomes a larger source. A cap on a flash a few metres away changes little.
• “Overcast and midday light are bad light.” Overcast light is excellent for faces, forests and anything with strong color. Midday sun suits graphic shadows, water and overhead views. The question is whether the light fits the subject.
• Shooting portraits in direct midday sun. Top light fills the eye sockets with shadow. Move the person into open shade, turn them so the sun is behind them and add fill, or diffuse the sun with a large panel. Shooting in harsh daylight covers each option.
• Relying on direct on-camera flash. It is small and front-on, so it gives flat light and a hard shadow behind the subject. Bounce it or take it off the camera.
• Trying to fix mixed light with auto white balance. It cannot make two colors of light neutral at once. Remove, match or embrace one source.
• Adding more lights to fix a problem. Each new light adds shadows and catchlights. Move the one you have first.
• Treating shadows as a flaw. Shadows show shape and depth, and they set the mood: a frame with deep shadows and a few highlights reads as low key and dramatic. Light with no shadows at all usually looks flat, not clean.

Can you read the light in a photo: where it came from, how hard it was and what color it had? Try the photo quiz: each round mixes eight of Duncan Rawlinson’s photos.

Try this: read the light, then move it

This takes about ten minutes with any camera or phone, one still object such as a mug or a piece of fruit, and one light: a window or a desk lamp.

1. Read three photos first (2 minutes). Open three photos you already like. For each, write down the size of the source (shadow edges), its direction (where shadows point), and its color (the cast on anything white).
2. Four directions (4 minutes). Without moving the object, shoot it with the light coming from beside the camera, from 90 degrees to one side, from behind the object and from above. If the light will not move, turn the object and yourself instead.
3. Two distances (2 minutes). Repeat the side-lit shot with the lamp, or the object, about 30 cm from the light and then about 1.5 m away, without changing your settings.
4. Fill and negative fill (2 minutes). Repeat the close side-lit shot with a white sheet of paper on the shadow side, then a black one.

Judge the results side by side. The side-lit frame should show the most texture, the front-lit one the least. The close frame should have softer shadow edges and a darker background than the far one, and the far one should look harder and more even. White card should lift the shadow side; black card should deepen it. If you cannot see those differences, the light was probably too weak against the room light, so turn the room lights off and try again. Then test yourself with the lighting quiz.

Frequently asked questions about photography lighting

What is the most important thing to learn about light first?

Learn to see the four properties separately: intensity, hardness, direction and color. Then learn the two levers that change most of them, the size of the source as seen from the subject and where it sits. Almost every lighting technique is a combination of those ideas.

Do I need lighting equipment to take good photos?

No. A window, a white sheet of foam board and the time of day give you control of size, direction, fill and color. Natural light teaches every principle that flash and studio lights use, so what you learn with it carries straight over.

How do I avoid harsh shadows on faces?

Make the source bigger relative to the face: move into open shade, shoot by a window, bounce the flash off a wall, or bring a softbox closer. Add a reflector on the shadow side to lift what remains. Keep some shadow, because a face with none looks flat.

Why are my indoor photos orange or yellow?

Household bulbs are much warmer than daylight, often 2700 to 3200K, and auto white balance often leaves some of that warmth in. Set a tungsten or kelvin white balance near the bulbs’ color, or shoot raw and correct it later. If daylight from a window is also in the room, the two colors will not both correct, so let one dominate.

What is the difference between a key light, a fill light and a back light?

The key light is the main source that shapes the subject and sets the exposure. The fill light is a weaker, softer source on the shadow side, usually near the camera, that lifts the key’s shadows. A back light, or rim light, sits behind the subject and outlines it against the background; a fill light is never placed behind the subject.

Is flash or continuous light better to learn with?

Continuous light is easier to learn with because you see the result before you shoot. Flash is far more powerful for its size and freezes motion, but you only see its effect after the shot. The principles of size, direction and falloff are the same for both.

Why does the background go dark when I use flash?

The background is farther from the flash, so the inverse square law gives it much less light, and your shutter speed may be too fast to record the room’s own light. Slow the shutter speed to let in more ambient light, raise the ISO, or bounce the flash so it lights the room as well as the subject.