1. Understanding Color Theory & the Emotional Impact of Colors
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red & green, blue & orange, yellow & violet) create a strong contrast. Using these together can be visually dynamic.
* Analogous Colors: Colors next to each other on the color wheel (e.g., blue, blue-green, green) create a harmonious and balanced feel.
* Warm Colors (Red, Orange, Yellow): Often evoke feelings of energy, passion, excitement, warmth, and sometimes anger.
* Cool Colors (Blue, Green, Violet): Tend to evoke feelings of calmness, tranquility, peace, trust, and sometimes sadness.
* Neutral Colors (White, Black, Gray, Brown): Provide balance and can be used to tone down intense colors.
Before you start, consider:
* The Story You Want To Tell: What emotion or mood are you trying to convey in your portrait? Choose colors that support that story.
* Subject's Skin Tone and Clothing: Some colors will flatter your subject more than others. Consider their complexion and clothing colors when choosing gels. You might want to avoid colors that clash or make their skin look unhealthy.
2. Equipment You'll Need
* Colored Gels: Purchase a gel kit from a photography supplier. These come in various colors and densities. Rosco and Lee Filters are popular brands. Consider buying a sample pack to experiment with different shades.
* Lights: You'll need lights to put the gels on.
* Speedlights (Flashes): Portable and relatively inexpensive. You'll need a speedlight stand and a way to mount the gel (see below).
* Strobes (Studio Lights): More powerful and offer more consistent light output. They also need a gel holder.
* Continuous Lights (LEDs): Becoming increasingly popular. Ensure they are powerful enough to create the desired effect, and that they don't overheat the gels.
* Gel Holders/Mounts: This allows you to attach the gel to your light. Options include:
* Gel Clips: Simple metal clips that attach the gel to the edges of your speedlight head.
* Speedlight Gel Bands: Rubber bands with gel holders that wrap around the speedlight head.
* Strobe Gel Holders: These are designed specifically for studio strobes and often attach to the reflector.
* Gaffer Tape: Works in a pinch, but be careful not to melt the gel, especially with hot lights.
* Light Stands: To position your lights.
* Light Modifiers (Optional): Softboxes, umbrellas, grids, snoots. These shape and control the light further.
* Camera: DSLR, mirrorless, or even a smartphone with manual controls.
* A Willing Subject!
* Optional Extras:
* Reflectors: To bounce light back onto the subject.
* V-Flats (Black or White): To control spill light and create shadows.
* Fog Machine (For Atmosphere): Can enhance the color and depth of the light.
3. Lighting Setups & Techniques
Here are some popular techniques using gels:
* Single Light with Gel:
* Basic: Place one light with a gel to the side of your subject. This casts a colored shadow on the opposite side.
* Dramatic: Place the light behind your subject, pointing towards the camera. This creates a colored rim light and silhouette.
* Two Lights with Complementary Gels:
* Classic: Place one light on either side of your subject, each with a different, complementary colored gel (e.g., blue and orange). This creates a dynamic and eye-catching portrait. Experiment with the power levels of each light to balance the colors.
* Key Light with White Balance Correction:
* Subtle Color: Use a white light as your key light (main source of illumination) and then use a gelled light as a fill light (to soften shadows). This creates a more subtle colored effect. You might want to set your white balance based on the gelled light.
* Background Light:
* Clean Background: Position a light with a gel behind your subject, pointing at the background. This will color the background while leaving the subject lit by white light.
* Silhouette + Colored Background: Similar to the above, but without a key light on the subject. This creates a silhouette against a colored background.
* Hair Light:
* Highlight the Hair: Use a light with a gel positioned behind your subject and pointing down towards their hair. This adds a pop of color and dimension.
* Split Lighting:
* Dramatic Contrast: Divide your subject's face in half with different colored gels. This creates a dramatic and striking effect. You can achieve this with two lights on opposite sides of the subject or a single light positioned directly to the side.
* Mixing Gels and Natural Light:
* Subtle Blends: Use gels to complement or enhance existing natural light. For example, add a blue gel to mimic the cool tones of twilight.
4. Camera Settings
* Shoot in RAW: This gives you more flexibility in post-processing to adjust colors and white balance.
* Aperture: Choose an aperture based on your desired depth of field. A wider aperture (e.g., f/2.8, f/4) will create a shallow depth of field and blur the background. A narrower aperture (e.g., f/8, f/11) will keep more of the image in focus.
* ISO: Keep your ISO as low as possible to minimize noise. Increase it only if necessary to achieve a proper exposure.
* Shutter Speed: Adjust your shutter speed to control the ambient light in your scene. When using flashes, the shutter speed primarily affects the ambient light, while the flash power controls the exposure of the subject.
* White Balance: Experiment with different white balance settings. You can set it to:
* Auto: The camera will try to guess the correct white balance, but it may not be accurate with colored gels.
* Custom: Use a gray card to set a custom white balance.
* Tungsten/Incandescent: Can create interesting effects when used with gels.
* Fluorescent: Another white balance preset that can produce different looks.
* Shoot for Accuracy, Fix in Post: Sometimes it's easier to get the exposure right and then adjust the white balance in post-processing.
* Flash Power: Start with a low flash power and gradually increase it until you achieve the desired exposure. Use a light meter for more accurate measurements. You can also use the test flash button on your camera or speedlight.
5. Post-Processing
* White Balance Correction: Adjust the white balance to fine-tune the colors in your image.
* Color Grading: Use color grading tools in software like Adobe Lightroom or Photoshop to enhance the colors and create a specific mood.
* Dodging and Burning: Use dodging and burning techniques to selectively lighten or darken areas of the image, enhancing the contrast and drawing attention to key features.
* Color Channel Adjustments: Make adjustments to individual color channels (red, green, blue) to fine-tune the colors and create a unique look.
* Local Adjustments: Use brushes or graduated filters to make localized adjustments to specific areas of the image.
* Experiment! Don't be afraid to try different things and see what works best.
Tips and Tricks
* Test Shots: Take test shots frequently to check your exposure, white balance, and color balance.
* Diffusion: If the light is too harsh, use a diffuser (e.g., a softbox or umbrella) to soften the light and create a more flattering look.
* Distance: Experiment with the distance between the light and the subject. Moving the light closer will create a stronger and more defined color effect. Moving it further away will spread the color more evenly.
* Multiple Gels on One Light: You can stack multiple gels on one light to create a wider range of colors. Be mindful of light loss.
* Mixing Gels of Different Densities: Gels come in different densities, indicated by their transmission percentage. A higher percentage means more light passes through.
* Safety: Be careful when using hot lights. Don't leave them unattended, and make sure the gels are properly mounted to prevent them from melting.
* Practice, Practice, Practice! The best way to learn how to use colored gels is to experiment and practice. Try different lighting setups, colors, and camera settings to see what works best for you.
* Inspiration: Look at the work of other photographers who use colored gels for inspiration. Pay attention to the lighting setups, color palettes, and post-processing techniques they use.
By understanding the principles of color theory, mastering your equipment, and practicing different techniques, you can create stunning and unique portraits using colored gels. Don't be afraid to experiment and have fun! Good luck!