1. Understanding the Basics
* What are Colored Gels? Colored gels (also called color filters) are thin sheets of transparent plastic material that can be placed over your light source (flash, strobe, LED panel) to change the color of the light. They come in a wide array of colors.
* Why Use Colored Gels?
* Mood and Emotion: Colors evoke specific emotions. Blue can feel cold and lonely, red can feel passionate and aggressive, yellow can feel warm and cheerful.
* Visual Interest: Adds a pop of color and breaks the monotony of standard white light.
* Separation and Depth: You can use different colors to separate the subject from the background, creating a sense of depth.
* Creative Expression: Gels allow you to push the boundaries of portraiture and create surreal, artistic images.
* Correcting Color Temperature: While primarily for creative effects, you can use color correction gels (CTO - Color Temperature Orange, CTB - Color Temperature Blue) to match your flash color to ambient light.
* What You Need:
* Colored Gels: Get a set with a variety of colors to experiment with. Rosco and Lee Filters are popular brands. Small gel sampler packs are a good place to start.
* Light Source: One or more speedlights (flashes), strobes, or LED panels. Speedlights are often the most accessible and affordable option.
* Gel Holders/Attachments: You need a way to attach the gels to your light source. Many speedlights have dedicated gel holders, or you can use gaffer tape. For strobes, look for gel holders that are designed to fit the strobe's reflector.
* Light Stands (Optional, but recommended): Allows you to position your lights freely.
* Modifiers (Optional, but recommended): Softboxes, umbrellas, grids, snoots, etc., can help control the spill of light and shape it.
* Camera: DSLR or mirrorless camera.
* Lens: A portrait lens, like a 50mm, 85mm, or zoom lens.
* White Balance Card (Optional): Helpful for achieving accurate colors in post-processing.
2. Planning Your Shoot
* Concept: Start with an idea. What mood are you trying to create? What story do you want to tell? This will guide your color choices.
* Color Palette: Decide on a color scheme. Consider:
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red and green, blue and orange). Using these can create a vibrant and dynamic look.
* Analogous Colors: Colors next to each other on the color wheel (e.g., blue, blue-green, green). These create a harmonious and peaceful look.
* Monochromatic Colors: Different shades and tints of the same color. This can create a very cohesive and elegant look.
* Lighting Setup: Sketch out a rough diagram of where you'll place your lights and your subject. Consider these common setups:
* Single Light: Simplest setup. Place a single gelled light to one side of your subject.
* Two Lights (Separation): Use one gelled light on your subject and another gelled light on the background (different color than the subject).
* Two Lights (Color Split): Use one gelled light on one side of your subject and another gelled light on the other side, creating a split of color across their face.
* Rim Light: Place a gelled light behind your subject to create a colored rim of light around their edges.
* Background Wash: Direct a gelled light onto a backdrop to create a colored background.
3. Setting Up Your Lights and Camera
* Attach Gels: Securely attach your chosen gels to your light source(s).
* Position Lights: Place your lights according to your lighting diagram.
* Camera Settings:
* Shoot in RAW: RAW files contain more information, allowing for greater flexibility in post-processing.
* Manual Mode (M): Gives you full control over aperture, shutter speed, and ISO.
* 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.
* Shutter Speed: Set your shutter speed to sync with your flash (typically around 1/200th or 1/250th of a second). Check your camera's manual for the correct sync speed.
* ISO: Keep your ISO as low as possible to minimize noise (ISO 100 or 200).
* White Balance: Set your white balance to "Flash" or "Tungsten" depending on the ambient light and the colors of your gels. You can also use a white balance card and set a custom white balance. You can always adjust this in post-processing if you shoot RAW.
* Power Settings: Start with low power settings on your flash(es) and gradually increase the power until you get the desired exposure. Use a light meter for precise measurements if you have one.
4. Shooting
* Take Test Shots: Take plenty of test shots to fine-tune your lighting and camera settings.
* Adjust Light Placement and Power: Make small adjustments to the placement and power of your lights until you achieve the desired effect.
* Experiment: Don't be afraid to experiment with different colors, lighting setups, and poses.
* Communicate with Your Model: Clearly communicate your vision to your model and give them direction on posing.
5. Post-Processing
* Color Correction: Adjust the white balance and color tones to achieve the desired look. You may need to make adjustments to individual color channels.
* Exposure and Contrast: Fine-tune the exposure and contrast to enhance the image.
* Retouching: Retouch any blemishes or imperfections.
* Sharpening: Sharpen the image for final output.
Tips and Tricks
* Diffusion: Use diffusion filters or softboxes to soften the light and create a more flattering look.
* Mixing Gels: Layer two different gels to create a new color.
* Gel Intensity: Some gels are more intense than others. Experiment with different densities of gels.
* White Balance Considerations: Be mindful of how your white balance settings affect the overall color of your image.
* Underexpose Ambient Light: If you're shooting in a space with ambient light, underexpose the ambient light so that the gelled light is the primary source of color.
* Safety: Don't place gels too close to hot lights, as they can melt or catch fire.
* Practice, Practice, Practice: The more you experiment with colored gels, the better you'll become at understanding how they affect your images.
Examples of Creative Gel Use
* Cyberpunk Portraits: Use neon colors like pink, teal, and purple to create a futuristic cyberpunk look.
* Film Noir: Use a single, strong colored gel (e.g., red or blue) to create a dramatic, film noir-inspired portrait.
* Surreal Landscapes: Use multiple colors to create a dreamlike, surreal landscape.
* Abstract Portraits: Use strong colors and bold lighting patterns to create an abstract portrait.
* Color Grading Simulations: Use gels to mimic color grading styles of popular films or photographers.
By understanding these principles and experimenting with different techniques, you can create stunning and unique portraits using colored gels. Have fun and let your creativity shine!