1. Understanding the Basics
* What are gels? Thin, translucent sheets of plastic (usually acetate or polyester) placed over a light source to change the color of the light it emits.
* Why use gels?
* Creative Expression: Completely alter the mood and tone of your portraits.
* Drama and Impact: Add pops of color and visual contrast.
* Separation: Use color to separate your subject from the background.
* Color Correction: While less common for creative portraits, gels can be used to correct white balance issues.
* Types of Gels:
* Color Correction Gels (CTO, CTB): Adjust color temperature (e.g., tungsten to daylight, daylight to tungsten). Less useful for creative portraits.
* Color Effect Gels: Come in a wide range of colors (red, blue, green, yellow, purple, etc.) to create specific moods.
* Neutral Density (ND) Gels: Reduce the amount of light without changing its color. Helpful for overpowering ambient light.
* Diffusion Gels: Soften the light output.
2. Equipment You'll Need
* Colored Gels: Start with a variety pack to experiment. Consider primary colors (red, blue, green) and complementary colors (yellow, cyan, magenta).
* Light Source:
* Strobes/Flashes: The most common and powerful option. Use with grids, snoots, or reflectors for controlled light.
* Continuous Lights (LEDs, Halogen): Work well, especially for beginners, as you can see the effect in real-time. Make sure they don't get too hot, which could damage the gels. LEDs are generally cooler.
* Gel Holders/Clips: Essential for attaching gels to your light sources. Many strobes have built-in clips, or you can use clamps.
* Light Stands: To position your lights.
* Background (Optional): A plain background is often best for emphasizing the colors, but you can also use colored backgrounds to complement or contrast with the gels.
3. Setting Up Your Shot
* Choose a Color Palette: Before you even pick up your camera, decide on the mood and story you want to tell. Consider:
* Warm Colors (Red, Orange, Yellow): Energetic, passionate, warm, aggressive.
* Cool Colors (Blue, Green, Purple): Calming, serene, mysterious, melancholy.
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red/green, blue/orange) create strong contrast and visual interest.
* Analogous Colors: Colors next to each other on the color wheel (e.g., blue/green, yellow/orange) create a harmonious and cohesive look.
* Single Light Setup (Great for Beginners):
1. Place your subject in front of your chosen background.
2. Position your light source to the side or slightly in front of your subject.
3. Attach your chosen gel to the light.
4. Experiment with the distance and angle of the light to control the intensity and spill of the color.
* Two Light Setup (More Control and Complexity):
1. Key Light: The main light source, often with a gel. Position it to create the desired shadows and highlights.
2. Fill Light: Placed opposite the key light to fill in shadows. Can also use a gel, potentially a different color than the key light, to create a color contrast. Alternatively use a reflector instead of a light.
3. Background Light: A third light with a gel can create interest in the background.
* Three (or More) Light Setup (Advanced): Allows for even more control and complexity. You can use separate lights to illuminate the background, create rim lighting, or add subtle color accents.
4. Camera Settings
* Shoot in Manual Mode: Gives you full control over exposure.
* White Balance: Set your white balance *before* adding gels if you want accurate skin tones. If you want to embrace the color, set it to daylight or another fixed setting and adjust in post. Consider using a gray card.
* Aperture: Choose an aperture based on the depth of field you want. Wider apertures (e.g., f/2.8, f/4) will create a shallow depth of field, blurring the background and focusing attention on your subject. Smaller apertures (e.g., f/8, f/11) will give you a greater depth of field, keeping more of the scene in focus.
* ISO: Keep your ISO as low as possible to minimize noise.
* Shutter Speed: Adjust your shutter speed to control the ambient light in the scene. If you're using strobes, the shutter speed will mostly affect the ambient light.
* Power of the Lights: Adjust the power of each light individually until you're getting the desired effect. Use a light meter if you have one.
5. Tips and Techniques
* Experiment with Colors: Don't be afraid to try different color combinations.
* Use Complementary Colors for Contrast: Red and green, blue and orange, yellow and purple create strong visual interest.
* Use Analogous Colors for Harmony: Colors next to each other on the color wheel create a more subtle and pleasing look.
* Control Light Spill: Use grids, snoots, and barn doors to focus the light and prevent it from spilling onto unwanted areas.
* Distance Matters: The closer the light source, the softer the light. The further away, the harsher.
* Intensity Matters: The closer the gelled light is, the stronger the color effect. You can also use ND gels to reduce the intensity without changing the color.
* Color Temperature: Be aware of the color temperature of your light sources and how it interacts with the gels.
* Diffusion: Use diffusion gels to soften the light and create a more flattering look.
* Double Gel: Combine two gels together for more unique and vibrant colors.
* Skin Tones: Be mindful of how gels affect skin tones. You may need to adjust the intensity or color balance in post-processing. Sometimes, a touch of neutral fill light can help bring back some natural skin tone.
* Hair Light: Use a separate gelled light as a hair light to add a pop of color and separation.
* Backgrounds: Use colored paper backgrounds to further enhance the color palette.
* Post-Processing: Adjust levels, curves, and color balance in post-processing to fine-tune the look.
* Start Simple: Begin with a single light and one gel to get comfortable with the process. Gradually add more lights and colors as you gain experience.
* Safety: Never put gels directly against hot lights. Use appropriate gel holders and heat-resistant gels.
6. Creative Ideas to Explore
* Two-Toned Portraits: Use two different colored gels on separate lights to create a split-lighting effect.
* Silhouette Portraits: Use a single, brightly colored gelled light behind your subject to create a silhouette.
* High-Key Portraits: Use bright, pastel-colored gels to create a light and airy feel.
* Low-Key Portraits: Use dark, saturated colors to create a dramatic and moody feel.
* Abstract Portraits: Use multiple lights and gels to create an abstract and surreal look.
* Themed Portraits: Use gels to create portraits that evoke a specific theme or mood (e.g., sci-fi, fantasy, horror).
* Gel and Makeup Coordination: Coordinate the gels with your model's makeup and clothing.
7. Examples of Gel Combinations
* Red and Blue: Classic contrast, can be dramatic or slightly retro.
* Orange and Teal: Popular for a cinematic look.
* Pink and Cyan: Creates a vibrant and playful feel.
* Yellow and Purple: A striking and energetic combination.
* Green and Magenta: Bold and unusual, can be used for a surreal effect.
Important Considerations:
* Model Release: Make sure you have a model release if you plan to use the photos commercially.
* Communicate with Your Model: Explain your vision to your model and give them clear direction.
* Have Fun! Experiment and don't be afraid to try new things. The best way to learn is by doing.
Using colored gels opens up a world of creative possibilities. By understanding the basics, experimenting with different techniques, and developing your own unique style, you can create stunning and impactful portraits that stand out from the crowd. Good luck!