1. Understanding the Basics
* What are gels? Colored gels are transparent sheets of plastic (usually acetate or polycarbonate) placed in front of a light source to change its color. They come in a wide range of colors, from vibrant hues to subtle tints.
* Why use them?
* Mood and Emotion: Colors evoke specific emotions. Warm colors (red, orange, yellow) can create a feeling of energy, excitement, or warmth. Cool colors (blue, green, purple) can convey calmness, mystery, or sadness.
* Visual Interest: Gels can break up the monotony of a standard portrait, adding pops of color and visual complexity.
* Separation: You can use different colored lights to separate the subject from the background, creating more depth.
* Special Effects: Create dramatic lighting effects, like simulating firelight or a neon glow.
* Corrective Purposes: While less common in creative portraits, gels can also be used to correct color casts from existing light sources.
* Equipment you'll need:
* Gels: A variety pack is a good starting point. Consider common colors like red, blue, yellow, green, magenta, and amber.
* Lights: Strobes (studio flashes) or speedlights (on-camera flashes) are most common. Continuous LED lights can also work, but you need to ensure they don't overheat the gels (use gels specifically designed for continuous lights).
* Gel Holders: These attach to your light and hold the gel in place. They can be simple clips, magnetic mounts, or more complex barndoors with gel holders.
* Light Stands: To position your lights.
* Modifiers (Optional): Softboxes, umbrellas, grids, snoots. These shape and diffuse the light.
* Clamps, Tape: Helpful for securing things. Gaffer tape is your friend.
* Light Meter (Optional): Helps you accurately measure the light output.
* Color Checker/Calibration Tool (Optional): Ensure accurate color representation in post-processing.
2. Planning Your Shoot
* Concept and Mood: Start with an idea. What feeling do you want to convey? What colors will help you achieve that?
* Color Theory Basics:
* Complementary Colors: Colors opposite each other on the color wheel (e.g., red and green, blue and orange). Using these together can create a vibrant contrast.
* Analogous Colors: Colors that are next to each other on the color wheel (e.g., blue, blue-green, green). These create a more harmonious and subtle look.
* Monochromatic: Using different shades and tints of a single color.
* Lighting Setup: Sketch out a plan for how you'll position your lights and where you'll place the gels. Consider these setups:
* Single Light with Gel: The simplest setup. Place the light with the gel to one side of the subject.
* Two Lights with Gels: More complex and versatile. Use one color as a key light and another as a fill light, or use them to light the background separately.
* Three Lights with Gels: Allows for even more control. You can use one light for the subject, one for the background, and one for a rim light or accent light.
* Wardrobe and Makeup: Choose clothing and makeup that complement or contrast with the gels you're using. Avoid colors that clash horribly (unless that's the look you're going for!). Consider neutral tones if you want the gels to be the star.
* Background: A neutral or dark background will allow the colors to pop. You can also use a background with texture or patterns to add visual interest. You can even use gels on the background itself!
3. Setting Up Your Lights and Gels
* Safety First: Be careful when handling lights, especially strobes. Don't look directly into the flash. Ensure the gels are properly secured to prevent them from falling and potentially causing a hazard. Make sure continuous lights aren't overheating the gels.
* Mount the Gels: Attach the gel holder to your light. Carefully slide the gel into the holder. Make sure it's secure and doesn't obstruct the light output.
* Position the Lights: Place your lights according to your plan. Consider the angle, distance, and height of the lights.
* Power Settings: Start with low power settings and gradually increase them until you achieve the desired effect. This will help prevent overexposure.
* Test Shots: Take a series of test shots to evaluate the lighting, color, and overall composition. Adjust the light positions, power levels, and gel combinations until you're happy with the results. A gray card can be used here to balance color in post.
4. Common Lighting Setups and Techniques
* Accent Lighting/Rim Lighting: Place a light with a gel behind and to the side of the subject to create a colored outline. This can help separate the subject from the background and add drama.
* Color Blocking: Use multiple lights with different colored gels to create distinct areas of color on the subject or background.
* Gradient Lighting: Angle the light so the color fades across the subject, creating a gradient effect. A snoot with a gel can help control the light spill.
* Two-Tone Portraits (Split Lighting): Light one side of the face with one color and the other side with another. This can be very dramatic and visually striking.
* Background Wash: Use a light with a gel to wash the background with color. This can create a simple but effective backdrop for your portraits.
* Monochromatic Portraits: Use different shades of the same color to create a cohesive and visually appealing portrait. You might use a deep blue for the background and a lighter blue for the key light.
* Gel + Beauty Dish: Place a gelled speedlight behind the subject aimed towards the background, and a beauty dish with no gel above the subject to add depth and dimension.
5. Shooting and Adjusting
* Camera Settings:
* ISO: Keep the ISO as low as possible to minimize noise.
* Aperture: Choose an aperture that gives you the desired depth of field. A wider aperture (e.g., f/2.8) will create a shallow depth of field, blurring the background.
* Shutter Speed: The shutter speed will primarily control the ambient light. With strobes, it will need to be at or below the sync speed of your camera.
* White Balance: Set your white balance based on your light source or use a color checker to get the most accurate color in post. You might experiment with different white balance settings to achieve different effects. "Tungsten" is often a good starting point when using blue gels.
* Communicate with your model: Direct your model on posing, expressions, and movement. The colors can influence their mood, so try to create an environment that fits the desired aesthetic.
* Review and Adjust: Continuously review your images and make adjustments to your lighting, composition, and model's pose.
6. Post-Processing
* Color Correction: Fine-tune the colors in post-processing to achieve your desired look.
* Dodging and Burning: Use dodging and burning to enhance the highlights and shadows, adding more depth and dimension to your portraits.
* Color Grading: Use color grading techniques to further refine the color palette and create a more cohesive look.
* Skin Retouching: Retouch the skin to remove blemishes and imperfections. Be careful not to over-retouch, as this can make the skin look unnatural.
* Experiment with Presets and Actions: Experiment with different presets and actions to find a style that you like.
Tips for Success
* Start Simple: Begin with one or two lights and simple gel combinations before moving on to more complex setups.
* Experiment: Don't be afraid to experiment with different colors, light positions, and camera settings. The best way to learn is to try new things and see what works.
* Control Light Spill: Use grids, snoots, and barn doors to control the spill of light and create more defined areas of color.
* Consider the Color of the Subject's Skin: Some colors may flatter certain skin tones more than others.
* Subtlety Can Be Effective: You don't always need to use super-saturated colors. Subtle tints can add a touch of mood and atmosphere without being overwhelming.
* Don't Overdo It: Sometimes, less is more. Too many colors or too much saturation can be distracting.
* Practice, Practice, Practice: The more you practice, the better you'll become at using colored gels to create stunning portraits.
* Study Other Photographers' Work: Look at the work of other photographers who use colored gels and analyze how they achieve their results.
By following these steps and experimenting with different techniques, you can create unique and creative portraits that are full of color and emotion. Good luck and have fun!