1. Understanding the Basics of Colored Gels:
* What are they? Transparent sheets of colored plastic or cellophane designed to be placed over light sources.
* What they do: They filter the light passing through them, changing its color. This allows you to add color to your subject, background, or both.
* Color Theory: A basic understanding of color theory is helpful. Consider:
* Complementary Colors: Colors opposite each other on the color wheel (e.g., blue and orange, red and green) create contrast and visual interest.
* Analogous Colors: Colors that are next to each other on the color wheel (e.g., blue, blue-green, green) create a harmonious and unified look.
* Warm vs. Cool Colors: Warm colors (red, orange, yellow) are often associated with energy and passion, while cool colors (blue, green, purple) can convey calm and serenity.
2. Equipment You'll Need:
* Colored Gels: A variety pack is ideal to start. Popular brands include Rosco and Lee Filters. Consider purchasing a sample swatch book.
* Light Sources:
* Speedlights (Flashes): Portable and affordable, good for small setups.
* Strobes (Studio Lights): More powerful and versatile, better for larger setups and overpowering ambient light.
* Continuous Lights (LED or Tungsten): Easier to visualize the color in real-time, but often less powerful than strobes. LEDs are generally cooler and use less power.
* Gel Holders/Attachments:
* Gaffer Tape: A simple and versatile way to attach gels to lights, but can leave residue.
* Gel Holders/Speedlight Modifiers: Specifically designed to hold gels securely on your flash or strobe. Look for ones that fit your specific light.
* Clamps: To hold gels onto reflectors, barn doors, or other light shaping tools.
* Light Stands: To position your lights.
* Light Modifiers (Optional but recommended):
* Softboxes: Create soft, diffused light.
* Umbrellas: Another way to diffuse light, easier to set up than softboxes.
* Barn Doors: To control the spread of light.
* Grids: To focus the light into a narrow beam.
* Snoots: To create a small, concentrated circle of light.
* Reflector (White, Silver, or Gold): To bounce light back onto your subject and fill in shadows.
* Camera with Manual Controls: You'll want full control over your settings.
* Light Meter (Optional): For precise exposure readings when using multiple lights.
3. Basic Lighting Setups with Gels:
Here are a few starting points. Experimentation is key!
* Single Light Setup (Key Light with Gel):
* Place your light to the side of your subject (or slightly in front) as the key light.
* Attach your gel to the light.
* Use a reflector on the opposite side to fill in shadows, or another light with a different gel.
* Example: Blue gel on the key light for a cool, moody portrait.
* Two-Light Setup (Key Light and Rim Light):
* Key Light: Positioned as above, with or without a gel. Provides the main illumination.
* Rim Light (Back Light): Placed behind your subject and to the side, pointing towards them. Use a different colored gel. This creates a colored outline around your subject.
* Example: Orange key light, and a blue rim light to separate the subject from the background.
* Two-Light Setup (Separating Subject from Background):
* One light (with a gel) pointed at the background.
* Another light (with or without a gel) illuminating the subject.
* Example: Red gel on the background, and white or warm white light on the subject for contrast.
* Clamshell Lighting with Gels:
* Main light with a gel placed above and slightly in front of the subject.
* Reflector placed below the subject to bounce light back up.
4. Key Techniques and Considerations:
* Power Levels: Start with low power on your flashes and gradually increase it until you achieve the desired effect. Overpowering the light can blow out the color.
* White Balance: Set your camera's white balance manually to match the color temperature of your lights. If you are mixing colors, experiment with different white balance settings to see what you like best. You can also shoot in RAW and adjust white balance in post-processing.
* Metering: Use a light meter (if you have one) to ensure proper exposure. When mixing colors, meter each light individually. If you don't have a light meter, use your camera's histogram to avoid clipping highlights or shadows.
* Diffusion: Use softboxes or umbrellas to soften the light and create smoother color gradients.
* Distance: The closer the light source to your subject, the softer the light and the more intense the color.
* Color Intensity: Some gels are darker/more saturated than others. Choose gels that give the color intensity you are looking for. Lighter gels might not be noticeable with powerful lights.
* Experiment with Placement: Move your lights around, try different angles, and see how the color changes.
* Gel Combinations: Try layering gels of different colors for unique effects.
* Backgrounds: Experiment with different colored backgrounds to complement or contrast with the gels on your lights. A dark background will allow the colors on your subject to pop.
* Post-Processing: You can fine-tune the colors, contrast, and overall look in post-processing. Don't be afraid to make adjustments to achieve your desired creative vision.
* Model's Clothing: Consider the color of your model's clothing. Neutral colors (black, white, gray) will allow the gel colors to stand out. Colors that clash with your gels can create unwanted effects.
* Safety:
* Heat: Be careful with gels on hot lights (especially tungsten). They can melt or burn. Use heat-resistant gels and ensure proper ventilation.
* Never look directly at a light source.
5. Creative Ideas & Inspiration:
* Color Grading Emulation: Use gels to mimic the color grading styles of your favorite movies or photographers.
* Double Exposure with Colors: Create a double exposure in camera or in post, using different gel colors for each exposure.
* Abstract Portraits: Use gels to create abstract patterns and shapes on your subject.
* Film Noir Style: Use a combination of hard and soft light with dramatic colors like reds and blues for a film noir feel.
* Backlit Portraits: Place a gelled light directly behind your subject for a silhouette effect with a colored edge.
* Light Painting: Use a gelled flashlight to "paint" with light during a long exposure.
* Subject Isolation: Use one colored gel on the background, and another on the subject to make the model pop.
* Monochromatic Look: Use different shades of the same color family.
6. Practice and Experimentation:
The key to mastering colored gels is practice and experimentation. Don't be afraid to try new things, break the rules, and see what you can create. The more you experiment, the better you'll understand how different colors interact with each other and how to use them to achieve your desired results. Take notes of your setups and settings so you can recreate them later.
By understanding the basics and putting in the practice, you can use colored gels to create stunning and unique portraits that stand out from the crowd. Good luck!