Using Colour Gels in a Toronto Photo Studio — Transforming Light Into Colour
Colour gels are among the most dramatically transformative tools available in studio photography. A sheet of translucent coloured film placed over a studio strobe or LED panel changes that light's output from white to whatever colour the gel provides, and the effect on the resulting image can be anything from a subtle warm accent to a completely transformed visual world of saturated, dramatic colour. Unlike many studio techniques that require significant investment in equipment, colour gel work can be started with minimal cost — gels are inexpensive, they work with any existing light source, and the range of effects they can produce is limited only by creative imagination.
We have seen gel photography transform studio sessions at our space in Leslieville in ways that consistently surprise both photographers and their subjects. The experience of working in coloured light — of seeing the studio environment shift into vivid reds or blues or purples as different gels are introduced — changes the quality of the creative session in ways that go beyond the images produced. Subjects become more expressive; photographers become more experimental; the session itself feels less like a technical exercise and more like a creative collaboration in which the light itself is a participant.
Types of Colour Gels Available for Studio Use
The colour gel market offers a vast range of options, from standard theatrical lighting gels that are available in hundreds of colours to photography-specific gels designed for precise colour rendering. The most commonly used gel brands in professional photography are Rosco and Lee, both of which offer comprehensive colour libraries with standardised colour names and codes that allow specific colours to be communicated and reproduced reliably across different sessions and different equipment.
Within the full colour gel range, several categories of gels are most commonly used in studio photography. Colour correction gels — CTB (colour temperature blue) and CTO (colour temperature orange) — are used to adjust the colour temperature of a light source rather than to add a specific colour. A CTB gel makes a warm tungsten or LED source cooler (bluer), while a CTO gel makes a cool daylight or strobe source warmer (more orange). These correction gels are workhorses in studio lighting, used to ensure colour consistency when mixing light sources with different colour temperatures.
Saturated colour gels — vivid reds, blues, greens, purples, yellows — are the creative gels that most photographers think of when they think of gel photography. These gels dramatically change the colour of the light source's output and create the vivid, high-impact colour effects that are associated with gel photography in contemporary fashion, portrait, and commercial photography.
Setting Up for Gel Photography in the Studio
Setting up for gel photography in a studio environment begins with understanding which lights in the setup will be gelled and what effect the gel on each light is intended to produce. The planning is more deliberate than with white light photography because the colour interactions between gelled lights are less predictable from visual intuition — the results of two coloured lights mixing on a surface are determined by additive colour mixing principles, not by the intuitive rules of subtractive colour mixing that most people have some experience with.
The simplest gel setup uses a single gel on the background light, leaving the subject lights white. This creates a coloured background while maintaining accurate colour rendering on the subject — a clean, controlled effect that is visually striking while being technically straightforward. The background colour can be changed simply by swapping the gel on the background light, making it easy to create a series of images with different coloured backgrounds in the same session without altering the subject lighting.
A more complex gel setup gels both the background light and one or more subject lights, typically with complementary or contrasting colours. A blue-gelled background light combined with an orange-gelled rim light creates a blue-and-orange visual environment with strong complementary contrast. A red background combined with purple subject lighting creates a warmer, more analogous relationship. Experimenting with different gel combinations in a tethered setup — where the results are visible on a calibrated monitor immediately — is the most efficient way to discover which specific combinations work best for a particular creative intention.
Gel Intensity and the Relationship to Exposure
The saturation of the colour produced by a gel depends on the exposure relationship between the gelled light and any ungelled or differently gelled lights in the setup. A gel produces its most vivid, saturated colour when the gelled light is the only or the dominant source of illumination; when ungelled white light mixes with the gelled colour, the colour is diluted toward white. Understanding this relationship allows the photographer to control the intensity of the gel effect by adjusting the relative power of the gelled and ungelled lights.
Gelled backgrounds photographed with very little spill from the subject lighting onto the background produce the most vivid, saturated background colours. When subject lighting spills onto the background, it dilutes the gel colour and reduces its saturation. Using flags or snoots to control light spill onto the background is an important part of maintaining vivid gel background colour in a full studio setup.
The camera's exposure settings also affect the apparent saturation of gel colours in the image. Slight underexposure — keeping the gel colour in the midtones rather than the highlights — typically produces more saturated, more vivid colour than exposing at or above the point where the gel colour approaches overexposure. This is the same principle as colour saturation in general photography, where slightly underexposed colour photographs often show more vivid colour than correctly or overexposed ones.
Skin Tones Under Coloured Light
One of the specific challenges of gel photography in portrait and beauty contexts is managing the interaction of coloured light with skin tones. Coloured light changes the apparent colour of skin, sometimes in ways that are artistically intentional and sometimes in ways that are unflattering or unwanted. Understanding how specific colours affect skin tone allows for more deliberate and better-controlled use of colour gels in portrait and beauty photography.
Cool gels — blues, greens, purples — applied to the key light can make skin tones appear cool and slightly grey or desaturated, which may be appropriate for certain fashion or editorial aesthetics but is typically unflattering in portrait photography that aims for natural-looking skin. Warm gels — oranges, ambers, yellows — applied to the key light enhance skin's natural warmth and can produce a glowing, flattering skin rendering that is appropriate for glamour, beauty, and lifestyle portraits.
The most effective approach to gel photography in portrait contexts typically keeps at least one white or warm-white light on the subject's face as the key, while using coloured gels on background lights and accent lights to create a coloured environment around the subject. This maintains accurate and flattering skin tone rendering while still creating the dramatic colour impact of the gel work in the overall image.
Creating Gradient and Split-Colour Backgrounds With Gels
One of the most striking applications of colour gels in studio photography is the creation of gradient or split-colour backgrounds using multiple gelled lights on the background. By using two background lights with different-coloured gels positioned at different heights or angles relative to the background, it is possible to create backgrounds that transition from one colour to another — from blue at the top to red at the bottom, from purple on the left to orange on the right, or any other combination.
The quality of the gradient — how gradual or abrupt the transition between colours is — depends on the distance of the background lights from the background surface, their angle, and whether they have any diffusion. Lights close to the background create more concentrated pools of colour with more abrupt transitions; lights farther from the background create more gradual, smoother transitions. Diffusion on the lights softens the gradient further. Experimenting with different positions and diffusion levels to create different gradient qualities is a productive area of creative exploration in gel photography.
Split-colour lighting on the subject — where one side of the subject is lit with a warm-coloured light and the other side with a cool-coloured light — is a specific gel technique that creates striking complementary colour contrast on the face or body. The warm side and cool side division creates a visual drama that references complementary colour theory directly, and it is one of the most commonly used creative gel effects in fashion and editorial portrait photography.
Building a Gel Collection and Workflow
Building a practical gel collection for regular studio use involves identifying the specific colours that are most useful for your creative and commercial work and investing in good quality gels of those colours. Rather than attempting to have every colour in the gel range, starting with the most useful categories — a set of colour correction gels in several strengths of CTB and CTO, a set of primary and secondary colour saturated gels, and a few specific colours that suit your aesthetic — provides the foundation for most gel photography applications.
Organising and storing gels properly prevents damage and makes them easy to access during sessions. Gels can be stored in a ring binder with clear plastic sleeves, labelled with their gel code and colour name, which allows easy selection during shooting. Cutting gels to the appropriate size for specific light modifiers — and labelling each cut gel — prevents the need to cut from the roll during sessions and maintains the gel's condition between uses.
The workflow for gelling lights in a session benefits from a deliberate and systematic approach. Starting with the background light(s) gelled first, confirming the background colour before adding gelled subject lights, and adjusting the power balance between gelled lights to achieve the desired colour saturation creates a logical progression that is more efficient than simultaneously gelling multiple lights and trying to evaluate their combined effect from the first shot.
Our studio in Leslieville provides a selection of commonly used colour gels that are available for use with the studio's lighting equipment, and we support photographers who want to explore gel photography with the controlled environment and the range of light modifiers needed to produce predictable and high-quality results. The creative possibilities of colour gel photography are enormous, and the studio environment is the ideal context for exploring them systematically and building the practical knowledge that makes gel work reliable and intentional.
Gels and Coloured Light in Beauty Photography
Beauty photography — photographing faces, skin, and makeup in a way that communicates their quality and appeal — has a specific relationship with colour gels that is different from their use in fashion or product photography. In beauty photography, the colour of the light on the skin is central to how the skin appears, and gels that introduce colour into the key or fill light can have a significant effect on the apparent quality of the skin's rendering.
Warm gels on the key light in beauty photography — CTOs at various strengths, light amber gels, golden tones — create the warm, glowing skin quality that is associated with golden hour outdoor beauty photography and that many beauty clients specifically want. The warm light emphasises the skin's natural warmth, creates a flattering tonal quality in highlights, and produces a richness and depth in midtones that cool light does not. For beauty photography that aims for a natural, warm, lifestyle-adjacent quality, warm gels on the key light are one of the most effective tools.
Cool gels in beauty photography are more challenging to use flatteringly on most skin tones because they tend to make skin appear cool, greyish, or desaturated in ways that are typically less flattering than warm light. However, in highly stylised, editorial, or artistic beauty photography where a specific cool, otherworldly aesthetic is intentional, cool gels can create a striking and distinctive skin rendering that serves the specific creative vision. The key is intentionality — using cool gels in beauty photography because they serve a specific creative purpose, not simply because they are available.
Creating Dynamic Multi-Colour Lighting Environments
One of the most visually dramatic applications of colour gels in studio photography is the creation of multi-colour lighting environments in which the subject is surrounded by coloured light from multiple directions, creating complex colour interactions on the subject's surface and in the background. A model photographed with a red gel from one side, a blue gel from the other, and a differently coloured background light lives within a multi-colour environment that creates a completely different visual experience from any single-colour setup.
The planning of multi-colour lighting environments requires thinking about colour interactions explicitly — understanding how the red from one side and the blue from the other will mix in the shadow areas of the subject, how the background colour will relate to the subject lighting, and how the overall colour composition of the image will read. Without this planning, multi-colour setups can produce muddy, confusing colour interactions that are visually incoherent; with careful planning, they can create stunning, harmonious colour compositions that reward careful viewing.
The use of coloured snoots or small coloured accent lights — small light sources with saturated gel that add small areas of colour to specific locations in the image — is a refined technique that allows the photographer to introduce specific colour accents with precise control. A small orange-gelled snoot that illuminates only the hair adds a warm colour accent that enriches the image without changing the overall colour balance. A small blue-gelled accent on the background creates a pop of colour that adds depth and visual interest to what would otherwise be a neutral area.
Gel Photography and Digital Post-Processing Integration
The relationship between colour gels used in shooting and colour treatment applied in post-processing is a productive area of creative integration that many photographers are beginning to explore more deliberately. The colour foundation laid by gel work during the session can be enhanced, shifted, or developed further in post-processing, creating results that neither the in-session gel work nor the post-processing alone could achieve.
A setup that uses a subtle amber gel on the background, creating a warm background tone, can be extended in post-processing by adding a complementary cool tone to the shadows, creating a split-toning effect that references the gel colour while adding additional depth. A multi-colour gel setup that creates bold, saturated colour in the raw capture can be toned down in post-processing for a more refined, less saturated version of the same composition, or pushed further into saturation for a more vivid treatment.
The key to effective integration of gel shooting and post-processing is starting with a clear creative intention for the final image colour and working backward to understand what combination of in-session gel work and post-processing will most efficiently and most predictably produce that result. For some colour effects, gel work during the session is the most direct route; for others, post-processing alone is sufficient; for the most complex and sophisticated colour treatments, a combination of both is required.
Practical Tips for Starting With Colour Gels
For photographers who are approaching colour gel photography for the first time, several practical tips can accelerate the learning curve and prevent common mistakes. First, start with a single gel on a single light — typically the background light — before adding gelled subject lights. This allows the effect of the gel to be understood clearly without the complexity of multiple coloured light interactions. Once the single-gel background effect is well understood, a second gelled light can be added and its interaction with the first explored.
Second, shoot tethered so that the results of gel lighting decisions are immediately visible on a calibrated monitor. The small camera LCD screen is not adequate for evaluating colour gel effects accurately, and without tethered review the photographer is working blind in terms of colour accuracy. Seeing the results of each gel adjustment immediately on a large, calibrated screen allows much more rapid learning and much more precise colour control.
Third, keep notes on which gel codes and light positions produced specific results. The range of variables in gel photography — gel colour, light power, light position, distance from background, additional gels on other lights — creates a large experimental space that is easy to lose track of without systematic documentation. Notes that record what specific combination produced what specific result make it possible to reproduce successful results reliably and to build on them in subsequent sessions.
Our studio at 260 Carlaw in Leslieville provides a selection of colour gels and a range of light modifiers that support gel photography experimentation, and we welcome photographers who are exploring colour gel work for the first time or developing more advanced gel photography techniques. The controlled environment of the studio is the ideal context for systematic colour gel exploration.
Gels in Architectural and Environmental Studio Photography
While much gel photography discussion focuses on portraiture and commercial product applications, colour gels offer equally interesting possibilities in architectural and environmental photography that is conducted in or staged in a studio context. Interior design photography, set design photography, and environmental portrait photography all benefit from the ability to transform the colour character of lighting to match specific design intentions or to create specific atmospheric qualities.
A studio set designed to simulate a specific interior environment — a living room, a café, an office — can have its lighting coloured with gels to create the specific light quality that would be found in that environment at a specific time of day. Warm amber gels on the key lights simulate the warm quality of late afternoon sunlight through a window; cooler gels with reduced intensity simulate the blue quality of north light on an overcast day. These colour choices in the simulated lighting help the studio environmental photograph read as a convincing depiction of the intended real-world environment.
Architectural photographers who work primarily on location but occasionally bring projects into a studio context find that gel work gives them creative flexibility that outdoor architectural photography does not provide. The ability to completely control the direction, quality, and colour of the light on a studio architectural subject — to simulate any time of day, any weather condition, any specific lighting scenario — creates opportunities for architectural photography that are impossible to achieve on location, where the actual light conditions must be accepted or waited for rather than designed and controlled.
The Science Behind Gel Durability and Degradation
Colour gels used in studio photography are subject to thermal degradation from the heat generated by studio lighting equipment. Tungsten and halogen light sources generate significant heat that can fade, warp, or melt gels that are not rated for the heat output of the specific light source. LED sources generate much less heat and extend gel life significantly, which is one of the practical benefits of the transition from tungsten to LED continuous lighting in many studios.
Even with LED sources, gels used repeatedly over time fade gradually, and the colour accuracy of faded gels should be checked periodically against fresh gel samples of the same colour. A gel that has faded even slightly may produce colour that is noticeably different from what it produced when new, and this difference may be significant in commercial photography contexts where colour accuracy is important.
Storing gels flat, away from direct light, and at room temperature extends their useful life. Rolling gels or folding them creates creases that scatter light in the creased areas, reducing the colour quality of the gel's output. Labelling each gel piece with its code and colour name at the time it is cut from the roll ensures that the information remains accessible even after the gel has been removed from its original packaging.
Gel Safety and Equipment Compatibility
Using colour gels safely in studio photography requires attention to the thermal characteristics of both the gels and the light sources they are used with. As mentioned, tungsten and halogen sources generate significant heat, and gels must be rated for the appropriate temperature range. Photography gels from reputable manufacturers like Rosco and Lee are typically rated for use with standard studio flash and continuous lighting equipment, but checking the manufacturer's specifications for both the gel and the light source before use is a reasonable precaution, particularly when using higher-powered equipment or keeping gels in place for extended periods.
The method of attaching gels to light sources affects both the quality of the gel's effect and the safety of the setup. Gel clips designed specifically for studio lighting — which hold the gel at a small distance from the light source rather than in direct contact with it — provide better heat management than taping gels directly to the light source. For light modifiers like softboxes and octaboxes, gel frames that slot into the front of the modifier hold the gel securely without requiring adhesive or clips that could fail during a session.
The colour accuracy of gels is also affected by light source spectral output. A gel that produces a specific colour with a daylight-balanced strobe may produce a slightly different colour with a different strobe that has a different spectral distribution, even if both strobes are nominally the same colour temperature. For commercial photography applications where colour accuracy is critical, testing specific gels with the specific light sources to be used in the session ensures that the colours achieved in practice match the intended colour design.
Building a Creative Practice Around Gel Photography
Developing a sustained creative practice around colour gel photography in the studio requires building both the technical knowledge and the creative vision that make gel work compelling rather than merely showy. The most memorable gel photography is not memorable because it uses gels, but because the specific colour choices made with those gels serve a clear creative intention that the image communicates effectively. Gels as technical tricks produce images that look like they were made with gels; gels as creative tools produce images whose colour is inseparable from their meaning.
Building this level of creative intentionality with gel photography requires the same sustained practice and honest self-evaluation that developing any other dimension of creative photography requires. Making a series of gel images, evaluating honestly which ones achieve genuine creative impact rather than merely visual interest, and understanding what specific colour choices and compositions produced the strongest work creates the foundation for a more sophisticated and more consistent creative approach to gel photography over time.
Following the work of photographers who are known for exceptional colour work — whether or not they use gels specifically — provides creative reference points that are more inspiring and more informative than studying technical gel tutorials alone. The colour consciousness of a photographer like Harry Gruyaert, whose street photography uses colour with extraordinary intentionality and sensitivity, or of a fashion photographer like Miles Aldridge, whose studio work creates vivid, saturated colour worlds that are immediately recognizable, offers creative inspiration that is directly applicable to studio gel photography practice. Our studio at 260 Carlaw in Leslieville supports this creative development with the resources and environment needed for sophisticated colour gel work.
Gel Photography as a Brand Differentiator
For commercial photographers who work in the portrait and fashion markets, developing a distinctive gel photography aesthetic is one of the most effective ways to differentiate their commercial practice from the large middle of the market. The majority of commercial portrait and fashion photographers work predominantly with white light and neutral or white backgrounds, producing technically excellent images that are largely indistinguishable from each other in terms of their visual aesthetic. A photographer who has developed a confident, distinctive approach to colour gel photography offers something genuinely different — a visual identity that potential clients recognise and seek out.
This differentiation through gel work is most effective when the gel approach is both technically confident and creatively intentional — when the colours are chosen deliberately for what they communicate and how they serve the subject, rather than being used for novelty value alone. A gel aesthetic that looks like every image was made with gels for its own sake — where the gel colour seems to be the point of the image rather than a tool in the service of a creative vision — is less commercially compelling than a gel approach where the colour serves the image in a way that seems inevitable and right.
Building the commercial portfolio that communicates a distinctive gel photography aesthetic requires creating a series of images specifically designed to showcase what that aesthetic can do at its best. These portfolio images should represent the range and the depth of the gel approach — different colour combinations, different types of subjects, different creative intentions served by the colour — so that potential clients can see not just one example of the work but a coherent body of work that demonstrates a sustained and developed creative vision. Portfolio images made specifically to showcase a technique are more effective than technique demonstration embedded within a broader, less focused portfolio.
The marketing of a gel photography capability to commercial clients benefits from specific visual examples and specific descriptions of what types of creative briefs the technique can serve. Clients who are not themselves photographers may not know what colour gels are or what they can do; showing them specific examples of gel work alongside specific descriptions of what the technique communicates and for what types of brands or projects it is most appropriate helps them understand both the capability and its commercial relevance. Our studio at 260 Carlaw in Leslieville welcomes photographers who are building this type of distinctive commercial identity through colour gel work.
Gel Photography for Special Occasions and Events
Colour gel photography has a specific application in special occasion and event photography — milestone portraits, anniversary sessions, birthday portraits, holiday-themed photography — where the ability to transform the studio environment through colour creates a distinctively festive or occasion-appropriate atmosphere that standard studio photography cannot achieve. The transformation from a neutral studio to a vivid colour environment through gel work creates images with an immediacy of occasion and celebration that is difficult to achieve through other means.
Themed gel setups for special occasions require advance planning and specific gel combinations that communicate the theme clearly. A Valentine's Day portrait session that uses warm rose-pink and gold-tinged background lighting creates an immediately recognisable occasion aesthetic. A holiday portrait session with rich red and green gel effects communicates the season with colour before any other element of the image. These colour narratives are effective precisely because the cultural associations of specific colour combinations with specific occasions are so well established.
Event photographers who work in a studio context — creating portraits and group photographs during events like holiday parties, corporate celebrations, or milestone birthdays — find that gel setups can be quickly changed to create variety within a single event, allowing the same studio space to produce images with different colour characters over the course of the event. A simple gel swap on the background light from a warm amber to a cool blue creates an immediate shift in atmosphere that makes subsequent images feel distinct from earlier ones.
The marketing of special occasion gel photography to clients who might not otherwise consider studio photography for their events benefits from showing specific examples of what a colourful, gel-lit studio portrait session looks like and how different it is from the unlit-background event photography they may have seen. Many clients who have never experienced studio gel photography discover, when they see the results, that the images are exactly the kind of festive, colourful, emotionally resonant portraits they have been looking for. Our studio at 260 Carlaw in Leslieville welcomes photographers who are building special occasion portrait practices and who want to incorporate colour gel work as a distinctive offering. The range of gels, modifiers, and backgrounds available in the studio, combined with the controlled environment that allows colour gel effects to be evaluated accurately and adjusted in real time through tethered shooting, makes our studio the ideal location for developing and executing colour gel photography at any level of complexity. Whether you are experimenting with gel work for the first time or executing a sophisticated multi-colour setup for a specific commercial brief, the studio provides the tools and the environment needed for creative colour work at its best. We invite you to bring your colour vision to our space and to discover what colour gel photography can contribute to your creative and commercial photographic practice. The history of photography is full of photographers who transformed their work through the discovery of colour gel possibilities — who found in coloured light a creative vocabulary that was uniquely their own and that became the foundation of a distinctive and enduring creative identity. That same discovery is available to every photographer who approaches gel work with curiosity and intention, and our studio is here to make that discovery as accessible, as supported, and as productive as possible for the Toronto photography community that we are proud to serve. The colour possibilities of a well-equipped studio are vast, and colour gel photography is one of the most direct and most dramatically satisfying ways to explore them. We look forward to every photographer who brings that spirit of colour exploration to our space at 260 Carlaw Avenue in Leslieville. There is always more to discover with colour gels, and we are always here to help photographers discover it in a space that is fully equipped for that exploration at any level of experience or ambition. We welcome every photographer who is ready to bring colour into their studio practice in a serious, intentional, sustained, and ultimately deeply rewarding creative way.
