Photography was initially popularized by its use in portrait photography. Initially Daguerreotypes made their presence known as inexpensive alternatives to miniature portrait paintings and then over the following century, photography reached every nook and corner. Even today, most consumers buy cameras to capture beautiful photographs of their near and dear ones.
To get the most pleasing portraits in natural light, here are some of the basic things to keep in mind –
Use a moderately high focal length and stand away from the subject. What this does is that the relative distances of the facial features become negligible in comparison to the distance from the camera. The result is a feeling of compressed face which appears very pleasing to the eye. On a 35mm camera, 100mm is the minimum focal length that I recommend for half body portraits and 135mm is the minimum focal length for pleasing head shots.
(Photographed with a 50mm lens on a APS-C sensor camera, from some distance so as to get the complete posture and a part of the huge SUV in the photograph. For anything closer, I would have preferred a higher focal length.)
There was a trend some years back that was started by a few famous travel magazines, where wide-angle lenses were used to capture portraits. The photographs were from exotic locations with gay expressions on the faces, a distorted view of the surroundings due to extreme wide angle and boosted up colors. Such photographs did wonders for the travelogues in those magazines but as portraits those were terrible. Avoid getting influenced by those photographs. Once in a while such portraits are fine but do not choose wide-angles for regular portraits. Wide-angle lenses forces the photographer to be closer to the subject. The relative distances of the facial features from the camera start to matter. In such photographs, the face turns roundish with large nose and small head. The distortion caused depends on the distance from the subject and so indirectly depends on the focal lengths.
What is actually surprising is that even many accomplished photographers think that this is due to the barrel distortion that is quite frequently seen in extreme wide-angles or also at the wide end of an inexpensive zoom lens. The rounding effect of face with wide-angle lenses is completely a matter or perspective and only thing that can help is the distance from the subject (and therefore focal length).
Make use of the negative space, especially in front of the face or the look of the eyes. (Negative Space). Placing the subject off center is what everyone keeps saying, however it makes sense to actually provide some kind of breathing space for the person in the photograph. Portraits, where the subject is facing the camera and also looking into the camera, look good when the photograph looks symmetrical. This is where placing the person in the dead center works fine.
Spot meter the face if you are using a camera that has this metering option. (Metering Modes). It ignores the rest of the scene and recommends an exposure reading based on the skin itself. Further tweaking can be done by checking out the histogram on the preview.
Focus on the eyes. This is the first feature on the face that catches anyone’s attention. Take extra pains if you have to for getting the eyes in sharp focus. Mild blurring or nose and ears is fine in most portraits if the eyes are well focused. If the eyes are on a turned face, then usually it is better to focus on the eye that is nearer to the camera. The only exception being when the other eye is more prominent, like in the photograph below.
(Portraits are about bringing out the personality and not just simple head-shots. The happiness that the old person is trying to hide by his hand is still conveyed by his eyes. More about this portrait – Temple with Million Bells)
Flash use in portrait photography has a very different use. When combining ambient light with flash, the first thing to understand is that it adds that twinkle in the eyes making them come alive. Using the flash as a fill flash can reduce ugly shadows under the eyes or nose which happen on a sunny day. (Flash Modes)
The flash itself needs to be balanced in relation to the ambient light. It depends on once taste and visualization.
One simple technique to adjust ambient light and flash exposure is to use shutter speed changes to increase or decrease the ambient light effect while not affecting the flash intensity. The principle behind this is the simple fact that changing the shutter-speed will obviously increase or decrease the ambient light (if everything else is kept same). The flash however lasts a very very small amount of time and its intensity therefore remains the same even if the shutter speed changes. The flash fires in a very short part of the time during which the shutter opens up. If you are using old flash units (manual flash) changing the aperture or changing the flash power manually will change the effect of flash. Let’s take an example. For a particular scene if the required exposure in ambient light is 1/125 sec at f/8, then changing the exposure to 1/60 sec at f/8 will double the amount of ambient light, but the flash which lasts for a fraction of this period will remain unaffected. Similarly, changing the settings to 1/60 sec at f/11 will keep the ambient light amount same but the flash power will be reduced.
With TTL flashes (the ones built in the camera or modern day flash units), the flash power can be easily controlled by using the flash compensation setting.
Another interesting aspect is how the face is actually lit up by these light sources. When the light falls on the face in a way that most of the face, that faces the camera, is lit up, the face looks chubbier! Professional photographers tend to call it ‘Broad Light’. Opposite of this is the method when a part of the face is lit up. Most of the light falls on the side of the face away from the camera. This is a highly angular light and brings out the texture of the face (wrinkles, freckles, softness etc) and also tends to make the face look thinner (Short Light). The change is brought about by changing the direction of the face rather than shifting the light.
Flash can be used to creatively light up specific parts of the portrait too. One of the most common techniques is using a flash from high up and behind the subject to highlight the hair. This has been named Rembrandt Technique, aptly after the famous painter (Learning from Rembrandt).
(Villager with shades – Captured on a full frame camera body with a 135mm lens. He was standing on a bridge with greyish-white footpath. The surface of the footpath acted as a reflector under the harsh sun and smoothened the dark shadow that would have formed on the neck in other similar situations. Also note the difference in tonal range of the face and the sun-glasses. This extreme difference increases the dominance of sun-glasses in the portrait. An extremely dark vignette was added in post-processing to tone down the background a bit.)
Reflectors also work fine. Reflector is anything that reflects light back on to the subject. Walls, clothes and even paper sheets can work as reflectors. Use a white sheet of paper to reflect some extra light on to the face. I find that in ambient light, reflectors provide better results than fill-flash. See the above photograph showcasing the use of a naturally existing reflector.
Ambient light – There are various aspects to light. Learn to see light. (Learning to see light). For portraits, soft light is the best generally. Try experimenting with light direction too. Light falling from behind and above the subject highlights the hairs (Rembrandt style of lighting, the name being taken from the painter. He used to use this method in his paintings to show highlights in the hair). Light falling on one side of the face can add character to the face whereas soft overall lighting can show the facial features clearly.
Pick up any glossy magazine and see the portraits in various advertisements. See how the face is lit up. Examine the eyes closely to get an idea of light sources too.
(Contented in his world, the child’s personality shines through this photograph. More about this portrait – Village Trip with Operation Eyesight Universal)
Some practical tips for getting your portraits to speak out –
- Know the person before capturing photographs. Idea is to capture the personality and not just a head-shot!
- Analyze what strikes you the most in the face and then photograph in a manner to highlight that thing. It maybe an expression or something in the face itself.
- Learn the difference between the photograph showing your model most beautifully and the most beautiful photograph of your model. The best portrait may not be the most flattering for the model.
- Make your model comfortable and confident in your skills.
- Spend sometime clicking photographs initially which may never be used. These so called wasted shots may go a long way in making the following photographs ‘keepers’.
- As an extension of the above tip, take a series of shots.
- Play around with props like sun-glasses, hats, exotic dresses or weird make-up. They can be quite interesting. However, limit the number these props.
(Since I mentioned Daguerreotypes initially, I thought it best to end the article with another bit of history. This is the photograph of Dorothy Catherine Draper (earliest surviving photograph of a woman). It is also oldest and most well-defined and visible human portrait picture. Captured in sometime around 1839)