1. Understanding the Basics of Colored Gels:
* What they are: Thin, transparent plastic sheets (typically acetate or polyester) that you place in front of a light source to change its color.
* Why use them:
* Mood: Change the emotional feeling of a portrait (e.g., blue for somber, red for passionate, yellow for cheerful).
* Drama: Add visual interest and a cinematic look.
* Color Harmony/Contrast: Complement or contrast with the subject's skin tone, clothing, or the environment.
* Separation/Highlighting: Separate the subject from the background or highlight specific features.
* Correcting Color Temperature: Use gels to subtly adjust the color temperature of your lights to match ambient light or create specific effects.
* Types of Gels:
* Color Correction Gels: Used to balance different light sources (e.g., CTB (Color Temperature Blue) to convert tungsten light to daylight, CTO (Color Temperature Orange) to convert daylight to tungsten).
* Color Effects Gels: Come in a wide variety of colors (red, blue, green, yellow, pink, etc.) to create dramatic effects.
* Neutral Density (ND) Gels: Reduce the amount of light without affecting the color.
* Diffusion Gels: Soften the light output.
* Gel Numbers: Gels are often identified by numbers and names (e.g., Lee Filters #079 Just Blue, Rosco #3202 Full Blue). This allows you to consistently recreate looks. Find gel swatch books at photography stores or online.
2. Essential Equipment:
* Colored Gels: Start with a basic set of popular colors (red, blue, yellow, green, pink).
* Light Source(s): Studio strobes, speedlights (flashes), or even continuous LED lights can be used. Strobes/flashes offer more power and flexibility.
* Gel Holders/Clips: Essential for attaching the gels to your light source securely. Many strobes come with built-in gel holders. You can also use simple spring clamps and heat-resistant tape (gaffer tape is good).
* Light Stands: To position your lights.
* Light Modifiers: Softboxes, umbrellas, snoots, grids, barn doors – these control the spread and direction of light. They're especially important when using gels to prevent unwanted light spill.
* Reflectors: To bounce light and fill in shadows.
* Camera with Manual Mode: To control aperture, shutter speed, ISO, and white balance.
3. Planning Your Shoot:
* Concept: Decide what kind of mood or visual style you want to create. What story do you want to tell?
* Color Palette: Choose your gel colors based on your concept. Consider:
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red and green, blue and orange). These create high contrast and visual energy.
* Analogous Colors: Colors next to each other on the color wheel (e.g., blue, blue-green, green). These create a harmonious and calming effect.
* Monochromatic: Using different shades and tones of a single color.
* Lighting Setup: Decide how many lights you'll use and where you'll position them.
4. Common Lighting Setups and Techniques:
* Single Light with Gel: The simplest setup. Place a single light with a gel to one side of the subject.
* Dramatic Silhouette: Place the gelled light behind the subject to create a silhouette against a plain background.
* Colored Shadows: Use a reflector to bounce some of the colored light back onto the subject, creating colorful shadows.
* Two Lights with Different Gels: A classic technique.
* Opposite Sides: Place one light with one color gel on one side of the subject and another light with a different color gel on the opposite side. This creates a dramatic, split-toned effect. Experiment with complementary colors.
* Key Light and Hair/Rim Light: Use one light with a subtle gel (e.g., a light blue) as the key light and another light with a stronger color gel (e.g., red or orange) as a hair light or rim light to separate the subject from the background.
* Background Light: Use a light with a gel to illuminate the background separately from the subject. This can create a more dynamic and immersive environment.
* Multiple Lights with Multiple Gels: More complex setups allow for even more creative control. Consider using three or more lights, each with a different gel, to create complex color gradients and highlights.
5. Setting Up Your Lights and Camera:
* Position the Lights: Place your lights according to your chosen setup. Pay attention to the angle and distance of the lights from the subject.
* Attach the Gels: Securely attach the gels to your light sources using gel holders or clips.
* Adjust Light Power: Start with low power settings on your lights and gradually increase them until you achieve the desired exposure. Pay attention to how the gels affect the light output (gels absorb light, so you may need to increase power).
* Camera Settings:
* Shoot in Manual Mode: This gives you full control over aperture, shutter speed, and ISO.
* Aperture: Choose an aperture that gives you the desired depth of field. Wider apertures (e.g., f/2.8) will create a shallow depth of field, blurring the background. Narrower apertures (e.g., f/8) will keep more of the image in focus.
* Shutter Speed: Adjust the shutter speed to control the ambient light in the scene. If you're shooting in a dark studio, you can use a faster shutter speed. If you're shooting in a brighter environment, you may need to use a slower shutter speed.
* ISO: Keep the ISO as low as possible to minimize noise.
* White Balance: Set your white balance manually.
* Custom White Balance: The most accurate method. Take a reading from a gray card or a similar neutral surface under the gelled lights.
* Preset White Balance: Experiment with different presets (e.g., tungsten, daylight) to see which one gives you the best results. Adjust in post-processing if needed. Choosing "Tungsten" when using blue gels can sometimes create a more pleasing, less overly-blue effect.
* Color Temperature (Kelvin): Adjust the Kelvin temperature manually to fine-tune the color balance.
6. Tips and Tricks:
* Start Simple: Don't try to do too much at once. Begin with a single light and a single gel and gradually add more lights and colors as you become more comfortable.
* Experiment with Placement: Move your lights around and try different angles to see how the light affects the subject.
* Use a Light Meter: If you have a light meter, use it to measure the light output of your lights. This can help you get a more accurate exposure.
* Test Shots: Take plenty of test shots and review them on your camera's LCD screen. Adjust your settings as needed.
* Diffusion: Use diffusion gels or softboxes to soften the light and create a more flattering effect.
* Color Theory: Learn the basics of color theory to understand how different colors interact with each other. This will help you choose the right colors for your portraits.
* Skin Tones: Be mindful of how the gels affect skin tones. Some colors can make skin look unnatural or unflattering. Adjust your lighting and camera settings to compensate. Generally, warmer colors (red, orange, yellow) are more flattering for skin than cooler colors (blue, green).
* Post-Processing: You can further enhance your colored gel portraits in post-processing software like Adobe Photoshop or Lightroom. Adjust the white balance, contrast, and saturation to fine-tune the colors and create the desired look. However, the goal is to get the look as close as possible *in camera* using the gels.
* Watch Tutorials: Search YouTube for tutorials on using colored gels in portrait photography. Seeing how other photographers use gels can give you inspiration and ideas.
* Safety: Use heat-resistant gels and tape to avoid melting or damage to your lights. Never leave lights unattended while they are on.
7. Creative Ideas and Examples:
* Cyberpunk/Sci-Fi: Use blue and pink gels to create a futuristic, cyberpunk aesthetic.
* Film Noir: Use deep red and blue gels to create a dramatic, moody look reminiscent of film noir.
* Dreamy/Ethereal: Use soft pastel colors (pink, lavender, light blue) to create a dreamy, ethereal feel.
* Pop Art: Use bright, saturated colors (red, yellow, blue) to create a bold, pop art-inspired portrait.
* Abstract Portraits: Use gels to create abstract patterns and shapes on the subject's face and body.
* Combine with Natural Light: Use gels to enhance or complement natural light. For example, use a blue gel on a strobe to simulate a moonlit scene outdoors.
8. Common Mistakes to Avoid:
* Overdoing it: Too much color can be overwhelming and distracting. Start with subtle effects and gradually increase the intensity as needed.
* Poor White Balance: Incorrect white balance can ruin the colors in your portrait. Set your white balance manually or use a color checker.
* Uneven Lighting: Make sure the light is evenly distributed across the subject's face. Use a light meter or test shots to check for unevenness.
* Harsh Shadows: Use diffusion or reflectors to soften the shadows and create a more flattering effect.
* Ignoring Skin Tones: Pay attention to how the gels affect skin tones. Adjust your lighting and camera settings to compensate.
* Not Considering the Background: The background should complement the subject and the colors in the portrait. Avoid distracting backgrounds.
By understanding the principles of colored gel lighting and practicing different techniques, you can create unique and creative portraits that stand out from the crowd. Don't be afraid to experiment and have fun!