Photography is about capturing the perfect image that can bring out emotions in the people who view it. That's easier said than done, which is why photographers have a number of tools to help them create the perfect image. One of these is the zoom lens, which helps make far away images seem much closer. It's a very common type of lens, and almost all cameras have at least a minor zoom.
Devices
Zoom lenses are created for use in all types of image-capturing or viewing devices. These include still and video cameras, binoculars, telescopes, microscopes and similar instruments.
Classification
Zoom lenses are defined by their shortest and longest focal lengths. For example, a zoom lens that ranges between 100 mm and 500 mm will be a 5:1, of 5x, zoom lens.
Ranges
Zoom lenses are any lens that has more than a 4x magnification. Professional cameras have zoom lenses that can be as powerful as 100x, though most fall around 16x to 26x, depending if it is a film or digital camera.
Function
Zoom lenses have two basic sets of multiple lenses, one that remains static and one that moves. The moving group of lenses changes the angle of light entering the lens, which creates the zoom effect.
History
The first true zoom lens was patented in 1902. It wasn't until 30 years later that they were commercially available for motion picture cameras.
Photography is about capturing the perfect image that can bring out emotions in the people who view it. That's easier said than done, which is why photographers have a number of tools to help them create the perfect image. One of these is the zoom lens, which helps make far away images seem much closer. It's a very common type of lens, and almost all cameras have at least a minor zoom.
Devices
Zoom lenses are created for use in all types of image-capturing or viewing devices. These include still and video cameras, binoculars, telescopes, microscopes and similar instruments.
Classification
Zoom lenses are defined by their shortest and longest focal lengths.
Enhance your photography skill,The Top Secret Photography Techniques
. For example, a zoom lens that ranges between 100 mm and 500 mm will be a 5:1, of 5x, zoom lens.Ranges
Zoom lenses are any lens that has more than a 4x magnification. Professional cameras have zoom lenses that can be as powerful as 100x, though most fall around 16x to 26x, depending if it is a film or digital camera.
Function
Zoom lenses have two basic sets of multiple lenses, one that remains static and one that moves. The moving group of lenses changes the angle of light entering the lens, which creates the zoom effect.
History
The first true zoom lens was patented in 1902. It wasn't until 30 years later that they were commercially available for motion picture cameras.
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