High-resolution digital photography requires the use of a professional camera, specifically a digital SLR (single-lens reflex) camera. Aside from its wide range of options for both manual and automatic settings, this type of camera allows the use of interchangeable prime and zoom lenses to suit the needs of any particular shooting setup. A digital SLR camera, often referred to as a DSLR, also provides an accurate preview of the subject being shot. This includes the framing, focus, color and exposure quality of the intended photo about to be taken.
High-speed Photography
High-speed photography is a widely used professional technique in which the shutter of the camera slowly opens and closes during a shot. This results to more light passing through the camera's opening, or aperture, which makes it possible to properly expose an image even during low-light conditions. This also allows fast-moving objects to look intentionally blurred for artistic or thematic purposes.
When shooting an evening shot of a busy highway with a slow shutter setting, the fast-moving cars passing by would simply look like laser lights moving in the cars' direction. Another use of the high-speed photography technique involves the intentional ghost-like or duplicating effect of an image of two people coming from opposite directions and running towards each other.
Time-lapse Photography
Time-lapse photography requires the camera to shoot a series of photos of the same subject at specific time intervals, then play these photos in sequence to show the fast-tracking of time. This is a popular technique when shooting a sunrise or sunset, a busy street, a flower blooming or the construction of a building.
Technically, the time-lapse effect requires the use of an intervalometer, which is a typical feature of many professional cameras. After setting how long the footage should be and how much time interval there should be for the time-lapse, the camera is locked on position for a long period to shoot the passage of time of the subject being shot. Once the sequential photos are played back, they show a very fast progression of time, such as a shot of a sunset only taking a few seconds to complete.
Exposure Manipulation Technique
The exposure manipulation technique involves altering specific camera settings to regulate the amount of light that passes through the camera, which in turn exposes the image being shot. This can be done in a variety of ways and in different combinations, as there are certain camera parts that play crucial roles in letting light pass through the camera. The aperture and shutter speed are two of the most important parts that affect image exposure.
The aperture, which works like the human eye's iris, can be set to its smallest possible opening to let less light to pass through. It can also be set fully open to allow more light to pass through. The camera's shutter also affects the light that passes through as it opens and closes in front of the aperture when shooting. Although photos would generally require proper exposure, some photography projects may look better underexposed or overexposed for aesthetic or mood-enhancing purposes.
White Balance Manipulation Technique
A camera's white balance involves the adjustment of color intensities to render the subject's colors according to how the camera sees it. Unlike the human eye, a camera doesn't automatically adjust how it sees its environment. It requires manual configuration or an automatic setting to determine a scene's color temperature. This decides how all the colors on frame would relatively look upon shooting.
Before taking a photo, the camera's white balance feature is set according to a base color, which is usually white. Once set, the camera captures a realistic depiction of colors for the scene. However, there are times that a photographer opts to manipulate the white balance to make the photo look out of the ordinary. For instance, when an exterior scene of a cloudy day is shot with tungsten balance (color temperature balance for a scene with a source of light coming from a warm lampshade), the scene captured by the camera becomes unusually blue.
High-resolution digital photography requires the use of a professional camera, specifically a digital SLR (single-lens reflex) camera. Aside from its wide range of options for both manual and automatic settings, this type of camera allows the use of interchangeable prime and zoom lenses to suit the needs of any particular shooting setup. A digital SLR camera, often referred to as a DSLR, also provides an accurate preview of the subject being shot. This includes the framing, focus, color and exposure quality of the intended photo about to be taken.
High-speed Photography
High-speed photography is a widely used professional technique in which the shutter of the camera slowly opens and closes during a shot. This results to more light passing through the camera's opening, or aperture, which makes it possible to properly expose an image even during low-light conditions. This also allows fast-moving objects to look intentionally blurred for artistic or thematic purposes.
When shooting an evening shot of a busy highway with a slow shutter setting, the fast-moving cars passing by would simply look like laser lights moving in the cars' direction. Another use of the high-speed photography technique involves the intentional ghost-like or duplicating effect of an image of two people coming from opposite directions and running towards each other.
Time-lapse Photography
Time-lapse photography requires the camera to shoot a series of photos of the same subject at specific time intervals, then play these photos in sequence to show the fast-tracking of time. This is a popular technique when shooting a sunrise or sunset, a busy street, a flower blooming or the construction of a building.
Technically, the time-lapse effect requires the use of an intervalometer, which is a typical feature of many professional cameras. After setting how long the footage should be and how much time interval there should be for the time-lapse, the camera is locked on position for a long period to shoot the passage of time of the subject being shot. Once the sequential photos are played back, they show a very fast progression of time, such as a shot of a sunset only taking a few seconds to complete.
Exposure Manipulation Technique
The exposure manipulation technique involves altering specific camera settings to regulate the amount of light that passes through the camera, which in turn exposes the image being shot. This can be done in a variety of ways and in different combinations, as there are certain camera parts that play crucial roles in letting light pass through the camera. The aperture and shutter speed are two of the most important parts that affect image exposure.
The aperture, which works like the human eye's iris, can be set to its smallest possible opening to let less light to pass through. It can also be set fully open to allow more light to pass through. The camera's shutter also affects the light that passes through as it opens and closes in front of the aperture when shooting. Although photos would generally require proper exposure, some photography projects may look better underexposed or overexposed for aesthetic or mood-enhancing purposes.
White Balance Manipulation Technique
A camera's white balance involves the adjustment of color intensities to render the subject's colors according to how the camera sees it. Unlike the human eye, a camera doesn't automatically adjust how it sees its environment. It requires manual configuration or an automatic setting to determine a scene's color temperature. This decides how all the colors on frame would relatively look upon shooting.
Before taking a photo, the camera's white balance feature is set according to a base color, which is usually white. Once set, the camera captures a realistic depiction of colors for the scene. However, there are times that a photographer opts to manipulate the white balance to make the photo look out of the ordinary. For instance, when an exterior scene of a cloudy day is shot with tungsten balance (color temperature balance for a scene with a source of light coming from a warm lampshade), the scene captured by the camera becomes unusually blue.
Digital Photography FAQ - Computer Science - Duke University
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