1. Understanding the Basics:
* What are Colored Gels? Thin sheets of colored plastic (usually acetate or polycarbonate) that you place in front of a light source (strobe, speedlight, or continuous light) to change the color of the light it emits.
* Why Use Them?
* Mood and Emotion: Colors evoke different feelings. Blue can suggest sadness or tranquility, red can signify passion or danger, yellow can represent happiness or energy.
* Separation and Contrast: Use different colored gels on different lights to separate the subject from the background or to highlight specific features.
* Drama and Visual Interest: Gels can create eye-catching, surreal, and artistic effects.
* Creative Control: Precisely control the color palette of your images, moving away from the mundane.
* Gel Types and Transmission:
* Full Color Gels: Completely change the color of the light.
* Color Correction Gels: Fine-tune the color temperature of your light (e.g., CTO to warm it, CTB to cool it). These are less about "creative" colors and more about fixing white balance.
* Neutral Density (ND) Gels: Reduce the intensity of the light without affecting its color. Useful for balancing power between different lights.
* Light Transmission: Some gels absorb more light than others. Darker or more saturated colors will require higher power settings on your lights. Always be prepared to adjust your exposure.
2. Gear You'll Need:
* Lights: Speedlights (strobes) or continuous lights. Speedlights are generally more versatile and portable for portrait work.
* Colored Gels: A variety pack is a great place to start. Rosco and Lee Filters are popular brands.
* Gel Holders: Essential for attaching the gels to your lights. Many speedlights have dedicated gel kits. For strobes, look for barn doors with gel holders or magnetic gel mounts.
* Light Stands: To position your lights.
* Modifiers (Optional but Highly Recommended):
* Softboxes: Diffuse the light for a softer, more flattering look.
* Umbrellas: Another diffusion option.
* Snoots: Create a concentrated beam of light.
* Grids: Control light spill and create a more directional light.
* Light Meter (Optional but Helpful): For accurate exposure readings when using multiple lights. Your camera's meter can be fooled by the colored light.
* Clamps, Tape, etc.: For securing gels and other gear.
3. Basic Lighting Setups with Colored Gels:
* Single Light Setup (Simple and Effective):
* Place your light with a colored gel in front of your subject.
* Adjust the angle and distance of the light to achieve the desired effect.
* Use a reflector to bounce some light back into the shadows. This setup is excellent for dramatic, moody portraits.
* Example: A single blue gelled light to create a cool, mysterious portrait.
* Two Light Setup (Common and Versatile):
* Key Light (Main Light): The primary source of illumination. Place it to one side of your subject, slightly in front. Use a softbox or umbrella to soften the light.
* Fill Light: Reduces shadows created by the key light. Position it on the opposite side of the key light, and usually at a lower power.
* Option 1 (Complementary Colors): Use a colored gel on *either* the key light *or* the fill light. This creates a subtle color contrast.
* Example: Key light with no gel, fill light with a blue gel.
* Option 2 (Opposing Colors): Use *different* colored gels on the key light and fill light. This creates a more dramatic and colorful effect. Be careful with skin tones; you might need to desaturate or adjust colors in post-processing.
* Example: Key light with a red gel, fill light with a blue gel.
* Hair/Rim Light: Positioned behind the subject to separate them from the background. Can be used with or without a gel. A contrasting color gel to the key light can be very effective.
* Example: Key light with a yellow gel, rim light with a blue gel.
* Three Light Setup (More Complex Control):
* Key Light (as above)
* Fill Light (as above)
* Background Light: Place a light behind your subject, aimed at the background. Use a colored gel to change the color of the background.
* Example: Key light with a yellow gel, fill light with a neutral gel, background light with a red gel. This allows you to completely control the background color and mood.
4. Creative Techniques & Tips:
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red and green, blue and orange, yellow and violet) create visual contrast and can be very striking.
* Analogous Colors: Colors next to each other on the color wheel (e.g., blue, blue-green, green) create a more harmonious and subtle look.
* Monochromatic: Using different shades of a single color (e.g., various blues) can be elegant and impactful.
* Underexpose: Often, underexposing your shots slightly can enhance the drama and intensity of the colors.
* Mixing Gels: Layer multiple gels on a single light to create unique colors. Experiment with different combinations.
* Backgrounds:
* Use colored paper backdrops to complement the gels.
* Project patterns or textures onto the background using a gobo and a gelled light.
* Skin Tone: Pay close attention to skin tones. Overly saturated or unnatural colors can make skin look unhealthy. Adjust the intensity of the gels or use color correction tools in post-processing to correct skin tones. A touch of white balance adjustment in camera is often helpful.
* Diffusion: Use diffusion gels or modifiers like softboxes to soften the light and reduce harsh shadows, especially when using saturated colors.
* White Balance: Set your camera's white balance to the *closest* setting to the gel color you're using, or shoot in RAW and adjust the white balance in post-processing. You'll likely need to fine-tune it.
* Experiment! The best way to learn is to experiment with different colors, lighting setups, and modifiers.
5. Post-Processing:
* Color Correction: Fine-tune the colors, white balance, and exposure.
* Skin Tone Adjustments: Correct any color casts on the skin.
* Color Grading: Enhance the overall color palette and mood of the image.
* Dodging and Burning: Subtly adjust the brightness and contrast in specific areas.
Examples & Inspiration:
* Red and Blue: Classic combination for a dramatic, cinematic look. Often used for a "cyberpunk" aesthetic.
* Orange and Teal: Popular in film and photography. Creates a warm/cool contrast.
* Pink and Green: Playful and vibrant.
* Yellow and Purple: Energetic and eye-catching.
Common Mistakes to Avoid:
* Over-Saturating Colors: Less is often more. Too much color can look unnatural and distracting.
* Ignoring Skin Tones: Make sure skin tones look healthy.
* Not Metering Your Lights: Use a light meter or histogram to ensure proper exposure.
* Not Considering the Background: The background should complement the subject and the colors.
* Being Afraid to Experiment: Don't be afraid to try new things and push your creative boundaries.
By understanding these principles and techniques, you can use colored gels to create stunning and unique portrait photography that stands out from the crowd. Good luck, and have fun experimenting!