Abstracting Exposure

Exposure, Bracketing, Compensation….

In the visual arts, particularly photography, the exposure of a composition determines the amount of detail and contrast in that composition. Traditionally, the longer the exposure the more detail and darker the overall composition.

The concept of exposure is not limited to the visual arts, a narrative composition is subject to the same rules of exposure as any medium. The longer the reader is exposed to a composition the more details are clear to them but if they are exposed to the same scene for too long it may all blend together (Over-Exposed). The same is also true if the exposure is too short. There will be too few details (Under-Exposed).

In order to achieve the Optimal Exposure the perfect balance between light and shadow, detail in the composition, it is necessary to sample the right saturation for each scene. The optimal exposure is, of course, the right exposure that achieves the desired effect. This approach may be entirely subjective however, there is a 'correct exposure' for every scene.

Photo Credit

Obtaining the correct exposure is a balancing act in any composition, obtaining the right level of detail while obtaining the desired effect. This can be achieved through a process called Bracketing. In a visual medium this process entails adjusting the exposure to increase and decrease the exposure and ultimately taking the best of the series. Through a narrative, the process of bracketing is a bit more complex but ultimately has the same results and centers on controlling the exposure in the scene.

Controlling the exposure in a narrative can be achieved through a few specific elements, the lighting, depth of field and speed of the composition. The most important concept to consider in the process is Reciprocity. This is a simple principle that states that the longer the exposure, the reciprocally smaller aperture required. In a narrative sense this means the longer the scene the fewer details of the scene and more focus on the subject. As each change in exposure adjusts the overall composition it creates a different exposure for the reader. Through reviewing each exposure it is possible to create the optimal exposure for the scene, the perfect balance of details and focus.

A different means of bracketing the exposure in a narrative scene is to use scenes of differing exposures to bracket the selected scene. Use a slightly darker scene before the darkest scene and a slightly lighter scene leading away from that scene to achieve an exposure balance.

To prevent an over exposure in a composition it may be necessary to provide a means of compensation for the scene. If the composition is too dark it is possible to compensate for this overexposure by adding more light to the scene or just an additional lighting source. The narrative composition can find compensation in added details, lighting sources and subtle shifts in depth of field that can change the exposure.

Finding the optimal exposure of a composition can be a difficult practice but often creates the best overall compositions whether it is bracketing the composition in a single scene to find the right balance or using the surrounding scenes to bracket a single composition. It is important to recognize when the audience becomes over-exposed and under-exposed to a composition.

Lighting the Narrative

In any composition, details can control the tone and atmosphere of the piece more than any overt elements. The strongest of these elements is also most often overlooked due to it's rather commonplace nature, lighting.

While settings and even weather can influence the atmosphere and tone of a piece, these are direct elements that an audience can perceive as cliche and can become a detriment to the overall composition. Using the lighting of each scene, each setting can be a subtle means of controlling the audience's preconceptions and perceptions of the composition.

As with photography and cinematography, controlling the lighting of the scene allows the creator to bring their vision of the piece to life. Through controlling the direction, quality and quantity of light in a scene it's possible to control perceptions of a scene.

Through the subtle manipulations of directional lighting it is possible to convey specific emotions and manipulate audience perceptions of the scene.

Ex: She paced along the ocean walkway under the warm glow of the park's lights. She needed answers and he was going to be the first step. Her pacing quickened until another gust rushed her and the rolling waves sprayed higher than the railing.

Photo Credit

The streetlight provides the directional lighting and offers a sense of security, safety, that the audience can perceive. This light source conveys the emotional tone of the scene, it's night, there's an anxiety about the scene and most details are washed out highlighting the primary subject in even greater detail.

Controlling the quantity of light in a scene is another means of controlling tone although it is far less subtle than simply adjusting the quality of the light and the direction of it.

Ex: The sun was warm as she drew a breath of determination and pulled open the heavy fire-door. Inside was a long dirty hallway lined with neglected and abused doors. Light was a precious commodity with a number of the ceiling lights broken. The fire door closed and left her in the pathetic lighting.

The transition from sunlight to a poorly lit interior reflects the oppressive emotions of the scene. The sunlight offers warmth, safety and comfort while the interior lighting reflects something darker, harsher than the outside world. This also demonstrates the differences in the quality of the lighting. The sunlight carries natural preconceptions and emotions while interior lights reflect a different set of emotions. Even if the lights were simple florescent lights there would still be a shift in the perceptions associated with the lighting.

Ex: I stepped out into the pure white florescent light. White eggshell walls reflected the light off the white tile floor in an empty wide hallway lined with cream colored doors and wire mesh windows down it's length. I stopped at the first large glass window to look at the sun-lit parking lot.

The distinction of the florescent lights emphasizes the sterile nature of the environment and carries a sense of cold detachment while the sunlight carries the warmth. The contrast between these two different qualities of light distinguishes two different sets of preconceptions and perceptions of the settings.

Through the subtle manipulations of lighting it is possible to reflect the desired narrative tone of the scene. Adjusting the depth of field, the focal points and emphasized details of a composition allows for a more dynamic composition that carries more emotional weight for the audience.