Using Colored Gels for Unique and Creative Portraits
Colored gels are a powerful and affordable tool for adding drama, mood, and artistry to your portraits. They can transform a simple setup into a captivating image with a vibrant story. Here's a guide to using colored gels effectively:
1. Understanding the Basics:
* What are Gels? Thin sheets of colored plastic that fit over your light source. They absorb some wavelengths of light, allowing only the color of the gel to pass through.
* Purpose:
* Color Correction: Balance the color temperature of different light sources (e.g., tungsten vs. daylight).
* Creative Effects: Add color washes, highlights, and dramatic lighting to your subjects.
* Separation & Definition: Use colors to distinguish your subject from the background.
* Types of Gels:
* Correction Gels: Used to adjust color temperature (e.g., CTO - Color Temperature Orange, CTB - Color Temperature Blue).
* Color Effect Gels: A wide variety of colors for creative lighting.
* Neutral Density Gels (ND): Reduce the intensity of light without changing the color.
* Gel Size: Buy gels that are large enough to cover the entire front of your flash or studio strobe.
* Gel Holders: Essential for attaching gels securely to your light sources. These can range from simple clamps to more elaborate magnetic systems.
2. Planning Your Shoot:
* Mood & Story: Think about the mood you want to create. What story do you want to tell? Colors evoke different emotions.
* Red: Passion, energy, danger.
* Blue: Calmness, sadness, coldness.
* Yellow: Happiness, optimism, warmth.
* Green: Nature, tranquility, envy.
* Purple: Royalty, mystery, creativity.
* Color Harmony/Contrast: Consider the relationship between colors.
* Complementary Colors (Opposite on the color wheel): Create strong contrast and visual interest (e.g., blue and orange, red and green).
* Analogous Colors (Next to each other on the color wheel): Create a harmonious and balanced feel (e.g., blue, blue-green, green).
* Monochromatic: Different shades and tints of the same color for a subtle and elegant look.
* Subject & Background: How will the colors interact with your subject's skin tone, clothing, and the background? Test different combinations beforehand.
* Lighting Setup: Decide on the number of lights you'll use and their positions. This will determine how you use the gels.
* Test Shots: Take plenty of test shots to see how the colors are translating and adjust accordingly.
3. Lighting Setups and Techniques:
* Single Gel: The simplest approach. Place a gel on a single light to add a wash of color across the entire scene or just to highlight a specific area.
* Example: A blue gel on your key light for a cool, moody portrait.
* Two Gels (Complementary Colors): A classic combination. Use two lights with complementary gels to create a dramatic contrast.
* Example: Orange on the main light and blue on the background light. This can create a stunning separation between your subject and the background.
* Two Gels (Analogous Colors): Provides a more subtle and harmonious look.
* Example: Blue-green on one light and blue on another, creating a calming and ethereal effect.
* Three or More Gels: For more complex and creative looks. You can use one color as a key light, another as a fill, and a third for the background.
* Example: Red as a key light, blue as a rim light, and green on the background. This requires careful planning and execution to avoid a chaotic look.
* Rim Lights with Gels: Placing lights with gels behind the subject creates colorful outlines and adds depth.
* Background Wash: Use a gelled light to color the background only, leaving your subject illuminated with white light or a different color.
* Graduated Gels: Gels that transition from one color to another, creating a smooth gradient effect.
4. Key Considerations:
* Light Intensity: Gels reduce the amount of light reaching your subject. You may need to increase your light power or adjust your aperture/ISO.
* White Balance: Set your white balance correctly. Using a custom white balance based on your light source will give you the most accurate colors. Experimenting with different white balance settings can also create unique effects.
* Skin Tones: Be mindful of how the colors affect skin tones. Avoid colors that make the skin look sickly or unnatural. Consider using a CTO gel to warm up the skin tone if needed.
* Color Spill: Be aware of color spill – unwanted color reflecting onto other parts of the scene. Use flags or gobos to control light and minimize spill.
* Experimentation is Key: Don't be afraid to try different colors, combinations, and techniques. The best way to learn is through practice.
* Post-Processing: You can further enhance your images in post-processing software like Adobe Lightroom or Photoshop. Adjust color balance, contrast, and saturation to fine-tune the final result.
5. Practical Tips:
* Start Simple: Begin with one or two gels and gradually increase the complexity of your setups.
* Use a Light Meter: A light meter can help you measure the light output and ensure consistent exposure across your scene.
* Invest in Quality Gels: Higher-quality gels will provide more accurate color and last longer.
* Protect Your Gels: Gels can melt if placed too close to a hot light source. Use proper gel holders and avoid overexposing the gels to heat.
* Take Notes: Keep track of your lighting setups, gel combinations, and camera settings so you can recreate successful looks in the future.
* Look for Inspiration: Browse photography websites and magazines to see how other photographers are using colored gels.
Example Setups:
* Classic Blue and Orange:
* Key Light: Strobe with 1/2 CTO Gel (warms the subject)
* Background Light: Strobe with Blue Gel (cool background contrast)
* Ethereal Green and Purple:
* Key Light: Softbox with a Light Green Gel
* Rim Light: Strobe with a Purple Gel
* Dramatic Red and Black:
* Key Light: Strobe with a Deep Red Gel pointed directly at the face.
* Everything else: Keep the environment completely dark or use black backdrops and clothing.
By understanding the principles of color and light, and by experimenting with different techniques, you can create stunning and unique portraits using colored gels. Good luck and have fun!