SHUTTER SPEED Photography Mt Parsons Shutter Speed Once

SHUTTER SPEED Photography Mt. Parsons

Shutter Speed • Once you have selected a film speed, the next critical choice you have to make is to choose a shutter speed.

Shutter Speed • Every camera must have a shutter. A shutter is a cloth or metal shield that is placed between the film and the lens. It protects the film from being constantly exposed to the light entering the lens if the lens cap is removed. The film is exposed to light only when the shutter is open. When the shutter is closed, the film is not being exposed.

Shutter Speed • The shutter has two main functions: • Control the time light is exposed to the film • Freeze the moment in time

Shutter Speed • Shutter speed is controlled by two factors: 1. Amount of light available 2. Speed of the subject

Shutter Speed • To create an image, a certain amount of light must travel through the lens and onto the film. The amount of light coming through the lens is controlled by the aperture or fstop, but the light cannot actually reach the film until the shutter is opened. Opening and closing the shutter controls the amount of time that the light is exposed to the film.

Shutter Speed • On a manual camera, two controls, the shutter speed and the f -stop are the key variables for good film exposure.

Shutter Speed • In manual cameras, shutter speed is variable and is usually controlled by the photographer. Proper shutter speed varies with the lighting conditions. Generally, if you have a bright sunny day, a fast shutter speed is needed to prevent too much light from reaching the film. If too much light does get to the film, it causes a condition called “over exposure. ” When the light is dim, a slower shutter speed is required to let more light onto the film.

Shutter Speed In manual cameras, shutter speeds are as follows: 1000 500 250 125 60 30 15 8 4 3 2 1 B T

Shutter Speed • The numbers represent a fraction of a second; in other words, a shutter speed of 1000, means that the shutter is open for 1/1000 th of a second, a 60 speed is open for 1/60 th, and so on. These choices are located somewhere on the body of your camera on a dial. You cannot a shutter speed between two settings.

Shutter Speed • Shutter speeds are standard on all cameras, so no matter what type of camera you have, 125 speed will be 1/125 th of a second. The relationship between each speed is also standardized. The number to the left of any given speed will cut the time in half and the number to the right will double the time.

Shutter Speed • The letter setting “T” and “B” are special settings. “T” stands for “timed” setting, which means that once the shutter release is depressed, the shutter will stay open until it is depressed again. “B” stands for “bulb” setting, which means that the shutter will remain open as long as the release is depressed.

Shutter Speed • Shutter speed is an important factor in controlling the image movement. If the subject is moving quickly while the shutter is open at a slow speed such as 60 or 30, the subject will appear as a blur on the film. A shutter that is open for 1/30 of a second will not freeze the action of a speeding car or any other brisk movement. In such as slow shutter speed, a speeding car will move from one part of the film to another, creating a blurry image. As a general rule, the faster the movement, the faster the shutter speed must be.

Shutter Speed • Outside shots are much easier to control than inside ones because you can control aperture, film speed, and shutter speed. • Inside shots are more difficult because you cannot always control the light you have to work with. Often, at museums, sporting events and concerts, you cannot use a flash, so you have to compensate with aperture and shutter speed.