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Natural, Ambient And Existing Light in Photography

Which is it? Confused?

It’s not uncommon to hear photographers describe light as artificial or natural light, but more often then none, I hear photographers at my photography workshops confuse the terms, ambient, natural and existing when describing light more so than artificially created light, so I thought I’d delve into these often misused terms.

Ambient, Natural, Existing, Daylight, Light, Photography

Model Candice Marie is photographed in existing light while natural light illuminates her from behind.

First, since I’m not a physicist and I’d probably get confused trying to explain the quantum theory of light, I’ll only cover 99.7-percent of artificial light, as most photographers know that on-camera flash and studio flash are artificial forms of light. So for the .3-percent or less, in photography, normally there are two common forms of artificial light, intermittent and continuous—both are emitted light.

Intermittent light is your typical flash unit often found in the forms of speedlights, monolights, ringflashes, strobes or flash heads. Continuous lights come in various varieties too, Kinoflos, florescent, LED’s, tungsten, HMI and the list goes on—basically, any type of man-made light that requires an energy source, continuous or intermittent, emits artificial lighting when it comes to photography.

Each form of artificial light has it’s own qualities, such as harshness or softness, specular or diffused, color rendition index and specific wavelengths to name a few. These lights vary in color temperature, measured in Kelvin, the most common types are, on average, 5400K for flash and 3200K for tungsten. So now that brings me to the main topic of this blog post, natural, ambient and existing light—of which daylight can play different roles in all three.

When photographers go outdoors and photograph models out in the open, they are working with natural daylight, assuming they are not using fill flash to either lighten up shadows or overpower the Sun with flash. Flash aside, photographers use this natural light, or daylight, to illuminate their subjects—in essence, photographers are merely capturing the reflected light off their subjects. In order to use daylight properly however, photographers have to understand a few basics. Two of those basics, which are also part of color theory, are that reflected light is what the human eyes and cameras capture to determine hue, brightness and saturation of color. Hence, without light, we see nothing.

One other factor involved in determining shape, color, contrast and form in what the camera and we capture is the physics rule, “The Angle of Incidence is Equal to the Angle of Reflection.” It’s this rule that also determines if reflected light is specular or diffused.

Natural, Existing, Daylight, Shade, Photography, Ambient

Light underneath a shade tree, such as this palm tree, is a more cool colored light, hence the white balance is adjusted to warm the image.

Specular light is formed by equal angles of light striking a smooth surface and reflecting back. This is a more focused, reflected light and in photography, it’s our highlights for the most part, or any bright spots in our final image. It’s also harsh light. Diffused light is light that strikes irregular or not so smooth surfaces, thus the light scatters in many directions, less focused, less contrast, softer and sweeter light. All surfaces, smooth or not, reflect some form of specular and diffused light, but in commonality, we see more diffused light around us, thus this is how most photographers illuminate their subjects as the light appears more natural.

Specular or diffused light are also transmitted forms of light in photography. A 7-inch conical metal reflector focuses light from a studio flash head, whereas if we remove the metal reflector and replace it with a soft box, the translucent inner baffle and the outer translucent front material diffuse the light that passes through it. The light rays emitted from a soft box are scattered in many angles, thus a less focused light is diffused light and shadows have softer edges. The same is said of a beauty dish, as the focused light hits the front, small domed reflector, it’s specular, then as that reflected light hits the 22-inch pan, found in most beauty dishes, the light becomes diffused as it’s reflected off the larger pan.

It’s all about the angles and this is why you hear me brag about the sweet Moab light, specifically during the Golden Hour, the first and last hour of sunlight in the day. But rarely do most photographers understand why, and often I’m confronted with, “Why go to the Moab for the golden hour, it’s no different than any other part of the world?” My answer is simply not necessarily true. Let me explain.

Moab, Golden Hour, Natural Light, Photo

This photo of model Candice Marie was produced during the Golden Hour of sunlight in the Moab.

Yes, the golden hour in the Moab shares common qualities with the golden hours throughout the world in that it’s basically the first and last hour of daylight of a typical day. It’s also a less intense and warmer light than midday light. The warmth is created because at that time of day, the Sun is at a more oblique angle to the Earth than at noon. The light emitted from the Sun travels further to reach us than when it’s directly overhead in the middle of the day. The shorter blue wavelengths of the spectrum are absorbed faster and scattered by the thicker atmosphere, thus leaving us with the longer wavelengths of red and yellow.

Ultimately it’s the atmosphere that affects how light is scattered and in the canyon lands of the Moab, my only guess, it’s the atmosphere that makes this golden hour sweeter, than the polluted skies of major cities. Perhaps this is why in parts of Thailand (land of the red-rising Sun), especially areas like Bangkok, the Sun leans more to red during the early morning or late afternoons, as the atmosphere is more polluted there than the atmosphere in the vast, less-polluted canyon lands of the Moab. Another assumption about the Moab light is in fact, on the more dusty days, the haze produces an even sweeter warm colored light because the finer dust particles that help scatter the light, originate from the warm red and yellow colored rock.

U.S. Virgin Islands photo, Natural light photography

This photo of model Candice Marie was taken while on a photography workshop in the U.S. Virgin Islands.

So as you can tell, even natural daylight is not that easily understood, but one thing for sure, daylight is natural, ambient and existing and this is where we start to convolute things. Natural light is light created by nature—sunlight—it’s there naturally. Even moonlight is natural light, after all, the moon is a reflector of sunlight and this form of light creates the ambience around us, hence why daylight is also ambient light.

Ambient light is the light that surrounds us, whether it’s created naturally or artificially, provided that it’s continuous. A television set, when it’s switched on, produces ambient light through transmission of light, and when it’s powered off, it reflects light to let us know it’s still there. Basically, ambient light, is existing light, the light that exists around us. Confused? Think of it this way, natural light is sunlight, and after it’s reflected, dispersed, diffracted, diffused, scattered, absorbed and/or refracted, the remainder of light is what we call ambient light or existing light.

Natural, reflected, light, Moab, outdoors, photography

This photo of Elite Agency model Jenni, was created in the Moab using a California Sunbounce to reflect daylight back into the model.

In photography, ambient or existing light outdoors is found in open-shade (shade), or non-shaded areas. This is where a photographer must understand, that un-shaded areas are hotter and shaded areas are colder—isn’t that why we stand under a shaded area on a hot summer day, to cool off? And if we associate the coolness with color temperatures, then we can easily remember that the light found in shaded areas is a cooler blue than non-shaded areas. This is why our digital cameras have white balance settings to adjust for this cool light. Now let’s take it indoors, the mother of all shade, where light is not necessarily natural, but it’s certainly exists.

Indoors our light is warmer. Why? Not because of the lack of air circulation in today’s world of central air-conditioning, but because the light found indoors, with the exception of fluorescently lit rooms, is normally illuminated by household bulbs. These incandescent bulbs lean towards tungsten colored light—it’s all about the wavelengths of light at this point. The wavelengths are longer, thus the warmth. It’s not about the ambient air temperature, it’s about color temperature emitted by the light source.

So bottom line, if you’re going to shoot with natural light, know that’s its also ambient and existing light. If you’re going to shoot in existing or ambient light conditions, know that it’s not necessarily natural light.

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  1. Great article- If you dont mind- Im making a scrapbook of your articles

    • Thanks and no problem on the scrapbook. Thanks, rg.

  2. OK That is a lot about light in photography, well there is really only two kinds of light in any kind of photography, There is the light that makes the picture and the light that breaks the picture. I am glad I found this site there is a lot of very interesting stuff here and some beautiful photos to go with it. Thank you.

  3. For me I go for natural light, to make the photo look original and not edited. Beauty that comes from natural light is very unique.

    • Natural light is always beautiful. Trying to recreate natural light is fun too! 😉


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Welcome to (Lens Diaries™), a hybrid photography blog with social flair. The photoblog provides photo tips, photo tutorials and photo diaries by professional photographer, author, writer, speaker and social media consultant, Rolando Gomez.

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