* Dramatic Lighting: Strong highlights and shadows define the subject's features.
* Subtle Gradation: Shadows are not completely black, but show subtle shifts.
* Mood: The tone is often serious, thoughtful, or even slightly melancholic.
* Directional Light: The light is coming from a distinct direction, often from the side or slightly above.
Here's a step-by-step guide:
1. Gear and Setup
* Camera: Any camera that allows you to shoot in manual mode (adjusting aperture, shutter speed, and ISO).
* Lens: A portrait lens (e.g., 50mm, 85mm, or 100mm) is ideal for flattering perspectives.
* One Light Source: This could be a strobe/flash with a modifier, a continuous LED light, or even a strong window light. The key is *control*.
* Light Modifier (Essential):
* Softbox: A medium or large softbox creates soft, diffused light, which is generally good for portraits.
* Umbrella: A white shoot-through umbrella also produces soft light.
* Beauty Dish: Produces a more focused light with a harder transition between highlights and shadows. This is a good choice for a more dramatic look.
* Reflector (Optional, but Recommended): A white or silver reflector to bounce some light back into the shadow areas.
* Grid: Used to direct the light more narrowly (like a spotlight). Very useful for dramatic portraits.
* Background: A dark or neutral background (grey, black, dark brown, etc.) will help the light on your subject stand out.
* Light Stand: To position your light.
2. Camera Settings (Starting Point)
* Mode: Manual (M)
* Aperture: Start around f/2.8 to f/5.6. Lower f-numbers (e.g., f/2.8) will give you a shallower depth of field (blurrier background). Higher f-numbers (e.g., f/5.6) will give you more of the face in focus. Experiment!
* Shutter Speed: Set to your camera's sync speed (usually around 1/200th or 1/250th of a second if using a flash) or something reasonable (1/60th or faster) if using continuous light.
* ISO: Keep as low as possible (e.g., ISO 100 or 200) to minimize noise.
* White Balance: Adjust to suit the light source (e.g., "Flash" if using a strobe, "Daylight" if using natural light, or manually set the Kelvin temperature).
3. Light Placement: The Key to the Look
* Side Lighting (Classic Portrait): Place the light to one side of your subject, at roughly a 45-degree angle. Raise it slightly above eye level. This will create a distinct shadow pattern across the face. This is a great starting point.
* Slightly Behind the Subject: You can also position the light slightly behind the subject to create a rim of light around one side of their face and hair. This can be very dramatic, but it's also a bit harder to control.
* Butterfly Lighting: Place the light directly in front and slightly above the subject. This creates a small, butterfly-shaped shadow under the nose. Be careful not to point the light straight down, or you will get unflattering shadows under the eyes.
* Rembrandt Lighting: Position the light to create a small triangle of light on the cheek opposite the light source. This is a classic portrait lighting technique.
4. Reflector (Optional, but Highly Recommended)
* Position the reflector opposite the light source to bounce some light back into the shadows. This will soften the shadows and reveal more detail in the darker areas of the face. Experiment with the angle and distance of the reflector to control the amount of fill light.
5. Posing and Expression
* Posing: Encourage your subject to turn slightly away from the light. This will help create more interesting shadow patterns.
* Expression: Coach your subject to maintain a serious, thoughtful, or slightly melancholy expression. Avoid overly broad smiles or overly dramatic poses. Focus on the eyes.
* Head Position: A slight tilt of the head can add interest and emotion to the portrait.
6. Shooting and Adjusting
1. Take a Test Shot: Take a shot and review the image on your camera's LCD screen.
2. Assess the Light:
* Are the highlights too bright? Reduce the power of your light or move it further away.
* Are the shadows too dark? Add a reflector, increase the power of your light, or move it closer.
* Is the light too harsh? Use a larger modifier (e.g., a larger softbox).
* Is the light too flat? Use a smaller modifier or a grid to focus the light.
3. Adjust Camera Settings: Adjust your aperture, shutter speed, and ISO as needed to get a properly exposed image.
4. Adjust Light Placement: Experiment with the position and angle of the light to create different shadow patterns.
5. Communicate with Your Subject: Give your subject feedback and encouragement.
6. Keep Shooting: Take lots of shots and experiment!
7. Post-Processing (Editing)
* Contrast and Levels: Adjust the contrast and levels to enhance the highlights and shadows.
* Black and White Conversion (Optional): Converting to black and white can enhance the dramatic mood.
* Dodging and Burning: Subtly lighten (dodge) the highlights and darken (burn) the shadows to further refine the light. Be careful not to overdo it!
* Sharpening: Sharpen the image slightly to enhance detail.
* Cropping: Crop the image to improve the composition.
Tips and Considerations
* Practice: The key to mastering one-light portraiture is practice. Experiment with different light positions, modifiers, and camera settings.
* Observe: Study the lighting in the example portraits you like. Pay attention to the shadow patterns and the overall mood.
* Experiment with Hard vs. Soft Light: Hard light creates strong, well-defined shadows, while soft light creates more gradual transitions between highlights and shadows. Choose the type of light that best suits your subject and the look you are trying to achieve.
* The Inverse Square Law: Remember that light intensity decreases rapidly as you move the light further away from the subject. A small change in distance can have a big impact on the exposure.
* Backgrounds: A dark background will absorb light, which will emphasize the light on your subject. A lighter background will reflect light, which can soften the shadows.
By following these steps and practicing, you can create stunning one-light portraits with a dramatic and emotional feel. Good luck!