I. Essential Gear:
* Speedlight/Flash: Your primary light source. Look for a flash with manual power control. TTL (Through-The-Lens) metering can be helpful, but for consistent results, especially when using modifiers, manual control is key.
* Light Stand: A sturdy light stand to mount your flash.
* Flash Trigger (Transmitter and Receiver): A reliable wireless trigger system to fire your flash remotely. Radio triggers are generally more reliable than optical triggers.
* Modifier (Choose at least one to start):
* Softbox: Creates soft, diffused light. Different sizes offer different levels of softness. Larger softboxes are softer. A 24x36" softbox is a good starting point.
* Umbrella (Shoot-Through or Reflective): A more affordable and portable option.
* *Shoot-Through Umbrellas:* The flash fires through the umbrella, creating a soft, diffused light.
* *Reflective Umbrellas:* The flash fires into the umbrella, reflecting the light back toward the subject, creating a broader, less direct light. Silver umbrellas are more contrasty, while white umbrellas are softer.
* Beauty Dish: Creates a more focused, directional light with a distinct "wrap-around" effect. Good for highlighting facial features.
* Bare Bulb: The flash is used without any modifiers. Creates a harsh, contrasty light with strong shadows. Can be useful for dramatic effects or bouncing off a wall or ceiling.
* Camera: DSLR or mirrorless camera with manual mode.
* Lens: A portrait lens (50mm, 85mm, or longer) is ideal. A zoom lens that covers these focal lengths is also suitable.
* Optional but Helpful:
* Reflector: A white or silver reflector to bounce light back into the shadows, filling them and adding dimension.
* Light Meter: For precise exposure readings (especially useful if you're new to flash photography). Your camera's built-in meter can work too, but a light meter is more accurate in flash situations.
* Gels: Colored gels to add creative color effects to your lighting.
* Grid Spot: Attaches to your flash to focus the light into a narrow beam.
* Snoot: Similar to a grid spot, but often conical, creating a very focused circle of light.
II. Basic Setup and Camera Settings:
1. Positioning the Flash:
* Off-Camera: Get the flash off your camera. This is crucial. On-camera flash generally produces flat, unflattering light. Use your light stand and trigger system.
* Angle: Experiment with different angles.
* 45-Degree Angle: A classic starting point. Position the flash at a roughly 45-degree angle to your subject, either to the left or right. This creates pleasing shadows and highlights.
* Side Lighting: Placing the flash directly to the side of your subject creates dramatic shadows and emphasizes texture.
* Feathering: Aiming the center of the light *slightly* away from the subject. This allows the softer edge of the light to fall on the face, reducing harshness.
* Height: Slightly above eye level is often flattering. Avoid placing the light too high, as it can cast unflattering shadows under the eyes.
2. Camera Settings (Manual Mode):
* Aperture: Choose an aperture based on your desired depth of field. Wider apertures (e.g., f/2.8, f/4) will blur the background and isolate your subject. Smaller apertures (e.g., f/8, f/11) will keep more of the scene in focus.
* ISO: Keep your ISO as low as possible (typically ISO 100 or 200) to minimize noise.
* Shutter Speed: The shutter speed controls ambient light. With flash photography, the shutter speed generally needs to be at or below your camera's flash sync speed (typically 1/200th or 1/250th of a second). Experiment to control the amount of ambient light in your photo. A faster shutter speed will darken the background, while a slower shutter speed will brighten it.
* White Balance: Set your white balance to "Flash" or "Daylight" for accurate colors.
3. Flash Power:
* Start Low: Begin with your flash power set to a low level (e.g., 1/32 or 1/64 power).
* Increase Gradually: Take a test shot and review the histogram on your camera's LCD screen. If the image is too dark, increase the flash power. If it's too bright, decrease the flash power.
* Histogram is Key: Use the histogram as your guide. You want the highlights to be near the right side of the histogram without clipping (losing detail in the highlights).
4. Focus:
* Sharp Focus: Ensure your subject's eyes are in sharp focus. Use single-point autofocus and focus on the eye closest to the camera.
III. Common Lighting Setups with One Flash:
* 45-Degree Lighting: (As described above) Versatile and flattering.
* Rembrandt Lighting: Position the light slightly to the side and higher than the subject, creating a small triangle of light on the cheek opposite the light source.
* Butterfly Lighting: Position the light directly in front of the subject and slightly above eye level. This creates a symmetrical shadow under the nose, resembling a butterfly. Often used for beauty shots.
* Rim Lighting (Backlighting): Position the flash behind the subject, aimed towards the camera. This creates a halo of light around the subject's edges, separating them from the background. Requires careful exposure control to avoid blowing out the highlights.
* Bouncing the Flash: Aim the flash at a white wall or ceiling to create a soft, diffused light. This is a great option when you don't have a modifier.
IV. Using a Reflector:
* Positioning: Place the reflector opposite the flash to bounce light back into the shadows.
* Angle: Experiment with the angle of the reflector to control the amount of fill light.
* Distance: The closer the reflector is to the subject, the more fill light it will provide.
* Holding: Have an assistant hold the reflector or use a reflector stand.
V. Key Tips and Considerations:
* Practice: Practice is essential. Experiment with different angles, flash powers, and modifiers to see how they affect the light.
* Model Communication: Direct your model. Tell them how to pose and where to look.
* Background: Pay attention to the background. Choose a background that complements your subject and doesn't distract from the portrait. Darker backgrounds will make your subject stand out more, while lighter backgrounds will create a brighter, airier feel.
* Shoot in RAW: Shooting in RAW format gives you more flexibility in post-processing.
* Post-Processing: Use post-processing software (like Adobe Lightroom or Photoshop) to adjust the exposure, contrast, white balance, and sharpness of your images. Retouching can also be used to remove blemishes and smooth skin (use sparingly for a natural look).
* Inverse Square Law: Understand the inverse square law. Light intensity decreases rapidly as the distance from the light source increases. Small changes in the distance of your flash from your subject can have a significant impact on the exposure.
* TTL vs. Manual: While TTL can be helpful, especially when starting out, learn to use your flash in manual mode for consistent and predictable results. TTL can be fooled by reflective surfaces or dark clothing.
* Experiment with Gels: Add color to your portraits by using gels on your flash.
VI. Troubleshooting:
* Overexposed Images: Reduce flash power, increase shutter speed (if it's slower than your sync speed), or move the flash further away from the subject.
* Underexposed Images: Increase flash power, decrease shutter speed (while staying at or below your sync speed), or move the flash closer to the subject.
* Harsh Shadows: Use a larger modifier, move the flash closer to the subject, or use a reflector to fill in the shadows.
* Red Eye: Move the flash further away from the lens axis. Off-camera flash greatly reduces red eye. You can also correct red eye in post-processing.
* Uneven Lighting: Ensure your subject is evenly lit. If one side of their face is brighter than the other, adjust the angle of the flash or use a reflector to balance the light.
By following these tips and practicing regularly, you can create stunning portraits with just one flash. Don't be afraid to experiment and find what works best for you. Good luck!