1. Understanding Colored Gels
* What are they? Thin sheets of colored plastic (usually acetate or polycarbonate) placed in front of a light source to change the color of the light it emits.
* Uses:
* Adding mood and emotion: Colors evoke different feelings.
* Creating separation: Using different colors on the background and subject.
* Adding a unique visual style: Anything from subtle hints of color to bold, vibrant statements.
* Correcting or balancing colors: Though this is less common in creative portraiture, gels can be used to adjust color temperature.
* Types:
* Color Correction Gels (CTO, CTB, Plus Green/Minus Green): Used to adjust color temperature or balance with other light sources. Less common for creative portraiture but good to know.
* Color Effect Gels: These are the fun ones! Available in a vast array of colors (red, blue, green, yellow, magenta, cyan, orange, purple, etc.) and densities (from subtle tints to deep, saturated colors).
* Diffusion Gels: Used to soften the light. Often paired with color gels.
* Density and Saturation: Think about how strong you want the color to be. Some gels are very subtle, while others produce deep, rich colors. Experiment to see what you like.
2. Equipment Needed
* Colored Gels: Start with a basic set of primary and secondary colors. Rosco and Lee are popular brands.
* Light Source(s):
* Speedlights (Flashes): Affordable and versatile. Easy to mount gels on.
* Strobes (Studio Flashes): More powerful than speedlights and often have built-in modeling lights.
* LED Panels: Continuous light sources. Make it easier to see the effect in real-time but may not be as powerful as flashes. Ensure they are color-accurate.
* Gel Holders/Mounts: Essential for attaching gels to your light source. Many speedlights and strobes have dedicated gel holders. You can also use clamps, tape, or DIY solutions. Just be mindful of heat with high-powered strobes.
* Light Stands: To position your light source.
* Modifiers (Optional but highly recommended):
* Softboxes: Create soft, diffused light.
* Umbrellas: Another option for soft light.
* Snoots/Grids: Focus the light into a tight beam. Useful for highlighting specific areas.
* Camera & Lens: Your preferred portrait setup.
* Triggers (If using off-camera flash): Wireless triggers to fire your flash units.
3. Basic Techniques
* Single Light with a Gel:
* Background Wash: Point a gelled light at the background to create a colored backdrop. Experiment with different colors and intensities.
* Key Light: Use a gelled light as your main (key) light on the subject. This creates a dramatic, monochromatic look.
* Two Lights - Separation:
* Key Light + Rim Light: Use a white light or subtly gelled light as your key light and a different color gel on a rim light (placed behind the subject) to create separation and highlight the edges.
* Background + Subject: Use one color on the background and a different color (or white light) on the subject. This creates a striking contrast.
* Two Lights - Complementary Colors:
* Contrasting Gels: Use gels with colors that are opposite each other on the color wheel (e.g., blue and orange, red and green, yellow and purple) for a dynamic and visually interesting look.
* Multiple Lights: Get really creative by using multiple lights with different gels. Experiment with layering colors, creating gradients, and highlighting different parts of the subject.
4. Setting Up Your Shot: A Step-by-Step Guide
1. Plan Your Concept: Before you start, decide on the mood and style you want to achieve. What story do you want to tell? Consider the color psychology of your chosen gels.
2. Position Your Subject: Place your subject in front of your background.
3. Set Up Your Lights:
* Background Light (Optional): Place a light behind your subject pointing at the background. Attach your chosen gel.
* Key Light: Position your key light (the main light source) to illuminate your subject. Attach your chosen gel.
* Rim Light (Optional): Place a light behind your subject pointing towards the camera, adding a rim of color around the edges. Attach your chosen gel.
4. Set Your Camera Settings:
* Aperture: Choose an aperture that gives you the desired depth of field. f/2.8 to f/5.6 is a good starting point for portraits.
* ISO: Keep your ISO as low as possible to minimize noise.
* Shutter Speed: Sync your shutter speed with your flash sync speed (usually around 1/200th or 1/250th of a second).
* White Balance: Set your white balance manually. You might need to adjust it based on the gels you're using. Experiment with different settings (Tungsten, Fluorescent, Custom). You can also correct the white balance in post-processing.
5. Adjust Flash Power: Start with a low flash power setting and gradually increase it until you get the desired exposure. Use a light meter for precise exposure, or rely on your camera's histogram and test shots.
6. Test Shots: Take plenty of test shots to fine-tune your lighting, color balance, and camera settings.
7. Shoot: Once you're happy with your setup, start shooting! Experiment with different poses, angles, and expressions.
5. Tips and Considerations
* Color Theory: Understanding color theory (complementary colors, analogous colors, etc.) will help you create more harmonious and visually appealing images. The Adobe Color Wheel is a great resource.
* Less is Often More: Don't feel like you need to use multiple gels in every shot. Sometimes a single gel on a background or a subtle hint of color is all you need.
* Experiment with Angles: Try different angles for your light sources to see how the light interacts with your subject's face and body.
* Model's Skin Tone: Consider your model's skin tone when choosing gels. Some colors might look better on certain skin tones than others.
* Heat: Be careful when using gels with high-powered strobes, as they can melt or warp. Use gel holders designed for heat dissipation or use LED lights.
* White Balance Adjustments: You may need to adjust your white balance in-camera or in post-processing to compensate for the color cast of the gels.
* Diffusers: Consider using diffusers (like tracing paper or diffusion gels) to soften the light and reduce harsh shadows.
* Mixing Gels: You can layer multiple gels together to create custom colors.
* Post-Processing: Don't be afraid to adjust colors and contrast in post-processing to further enhance the look of your images. However, strive to get as close to your desired look *in camera* as possible.
* Safety: Be mindful of heat with strobes. Don't let the gels touch the bulb directly. Use proper gel holders.
6. Creative Ideas and Inspiration
* Film Noir: Use dark, moody colors like blue and green for a classic film noir look.
* Cyberpunk: Combine neon colors like pink, purple, and blue for a futuristic vibe.
* Dreamy Pastel: Use soft, pastel-colored gels for a whimsical and ethereal look.
* Abstract Portraits: Use gels to create abstract patterns and shapes on your subject's face and body.
* Color Blocking: Use different colors on different parts of your subject's face and body to create a bold and graphic look.
* Emotion-Based Color: Choose colors that reflect the emotion you want to convey. Red for passion, blue for sadness, yellow for joy, etc.
* Double Exposure (in camera or post): Combine a gelled portrait with another image for a surreal effect.
7. Practice and Experimentation
The key to mastering colored gel photography is practice and experimentation. Don't be afraid to try new things and break the rules. The more you experiment, the more you'll develop your own unique style. Good luck and have fun!