Understanding Natural Light Part 3: Direction of Light
Light has different qualities, and by understanding those differences and using them in your favour, you can become a better image maker.
In two previous articles I covered:
- Understanding Natural Light Part 1: Quality of Light
- Understanding Natural Light Part 2: Color of Light
In this third chapter, you will learn:
- How to control the direction of natural light in the field.
- How to understand the different effects the direction of light will have on your portraits. How to mix light colors to create depth.
- A few advanced techniques, like using reflectors or flags.
- How to practice using exercises.
Please note that as a portrait photographer, I will be discussing portraits, and using them as examples. However, this knowledge applies to any kind of photography.
Working with natural light does not mean compromising
Most people will tell you that while working with artificial lighting will allow you to fully control the lighting situation in your shooting, working exclusively with natural light will limit your ability to control the lighting to almost zero. In my opinion, this false assumption is leading many photographers to mediocre images. Stating that the lighting is poor, because “that’s how it was” when they made the photo, is not acceptable.
So, the first step in controlling natural light is to carefully plan your time of the shoot. In the preview articles, we have discussed how the quality and color of light are affected by time, and weather, during the day. Now, let’s understand how the direction of light will change throughout the day, and how it will affect the lighting situation in our portraits.
Frontal lighting refers to light which comes directly in front of your subject (the light source is behind you and the camera). The situation is possible or when your subject is facing the light source (for example face directed to a setting or a rising sun). Another possibility is with reflected light. Like in this image, Dialsiz was standing in the shade, but in front of her was a bright sunny wall, reflecting the sunlight directly on her face.
Pros: Frontal lighting will usually illuminate your subject’s face evenly, without any shadows. It will create an aesthetic and balanced look, which is why this setup is very popular in fashion and beauty shoots.
Cons: The lack of shadows will create a lack and depth and drama.
45 degree lighting
As the name suggests, this refers to a situation where the light comes from an angle of 45 degrees from the nose of your subject. This is extremely popular lighting setup in portrait photography, which is sometimes called Rembrandt lighting. It can be easily achievable with side light coming from a rising or setting sun, or by positioning your subject at a 45 degree angle to a window.
Pros: in this lighting setup, you will note how the light illuminates your subject’s face gradually. Creating a gradual shadow, and in our two dimensional art form, shadows usually mean depth and volume. That is the reason this setup is so appealing in the eyes of most viewers.
Cons: The dramatic effect of shadowing parts of the subject’s face might not be suitable for your visual story.
90 degree lighting
As the name suggests, this refers to a situation where the light comes from an angle of 90 degrees from the nose of your subject. It can be achievable with side light coming from a rising or a setting sun or by positioning your subject at a 90 degree angle to a window.
Pros: Extremely dramatic effect, which is almost impossible to ignore.
Cons: This dramatic lighting setup can be a little over dramatic, and with the right subject, this lighting can be scary! It all depends of course, on what you want to evoke in your visual story.
This refers to a situation where the light comes from behind your subject, and in front of you.
Pros: Backlight will create highlights in the contours of your subject, and unlike with frontal lighting, this will create a sense of depth, and a clear separation between the subject and the background. Unless the light source is very dim and fully covered by your subject’s body, working with backlight will force you to be creating with your photography, as it will make the exposure a bit more difficult. This is where switching from the automatic mode can be handy. While overexposing can be good for creating a burned out background or a lens flare, underexposure will usually result in a nice silhouette (as above)
Cons: As mentioned, this one is a bit more advanced to handle, and will mostly require switching out of your camera’s automatic mode, but again, a great opportunity for some creative photography.
Light from above
This refers to a situation where the light comes from directly above your subject, like during midday.
Pros: This interrogation room style lighting setup will not be flattering to most faces. Light coming from above will result in deep shadows on your subject’s face, making the forehead shadow the eyes, and making the nose shadow the chin. However, it can be used as a way of creating a very dramatic image. Oscar-winning Cinematographer Gordon Hugh Willis, did a groundbreaking work in Francis Ford Coppola’s movie, The Godfather, with the combination of underexposing and positioning the lighting source above the actors’ faces. He managed to support the dark and mysterious sense of this movie, with the audience was unable to see most eyes throughout the movie.
Cons: As mentioned, when handled right, this lighting setup, can lead to great and creative results. Otherwise, you subject will look like he or she is going to answer some tough questions.
Controlling natural light
Basic: in the simplest form, controlling natural light is first in the planning. Choose the right time to be outside, or take your subject indoors to use the soft light coming from a window.
Advanced: You can control natural light almost like controlling artificial lighting, with the help of reflectors or/and flags.
Reflectors are used to bounce light into the subject’s face. For example, if you are dealing with light coming from above, you can overcome the problem of dark eyes by illumining them using a reflector. It can also lighten the dark side of the face, if needed, in the case of lighting from a 45 or 90 degree angle.
You can see the reflection of the reflector used to bounce light back into this man’s face.
A flag is usually a piece of black fabric that can be used to block unwanted light and create shadows (shadows mean a sense of depth remember?) on the subject’s face. To use a flag properly, you will need somebody or something that can hold it. That is the way I use all kind of flags in the field. I have used my hat (which I was holding in my left hand) to shadow an overexposed forehead numerous times, or using the help of an innocent bystander that was asked to stand in one spot for a moment, to create a shadow when needed.
Christmas (or just after it) is the best time to ask for a favor. Bring your favorite friend, family member, or pet, and position it in front of a window. While moving your subject, practice the concepts of frontal, back, 90 degree and 45 degree lighting setups. Examine the images, and get a deeper understating of how light direction will affect your portrait.
Reflectors are effective and fun to use. You can buy yourself a reflector, or prepare one with a small piece of cardboard and a simple aluminum foil.
The post Understanding Natural Light Part 3: Direction of Light by Oded Wagenstein appeared first on Digital Photography School.