Zoom Lens Basics

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.

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.

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.

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.

Zoom lenses have two basic sets of multiple lenses, one that remains static and one that moves. "Would you like to understand digital photography systems that carry experienced photographers to where they are today? Well, The Top Secret Photography Techniques could guide you out in doing so. To obtain stunning pictures we first need to look at some imperative photography methods. The primary one I am able to share with you is identify about light. You can discover everything concerning photography techniques on , The Top Secret Photography Techniques. Anytime you discover about light and in what technique it interacts with the direct environment then your pictures will get better..". The moving group of lenses changes the angle of light entering the lens, which creates the zoom effect.

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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Lens Basics Understanding Camera Lenses
www.exposureguide.com/lens-basics.htm
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Prime vs Zoom vs Kit Lens ( Nikon Canon or Sony) Fixed
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SMC Pentax-DA 18-250mm F3.5-6.3 ED AL [IF] Reviews - DA Zoom ...
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SMC Pentax-DA 18-250mm F3.5-6.3 ED AL [IF] lens reviews and detailed specifications. Released in late 2007, the SMC Pentax-DA 18-250 mm lens is based on a Tamron 18 ...
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How better the image quality a prime lens can get than a zoom lens ...
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Jan 05, 2009 Best Answer: Every working photographer that I know has a bunch of lenses and they only use a couple. One guy I know has only uses a lens about 85
SMC Pentax-DA 55-300mm F4-5.8 ED Reviews - DA Zoom Lenses
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SMC Pentax-DA 55-300mm F4-5.8 ED lens reviews and detailed specifications. The Pentax DA 55-300mm telephoto zoom lens was released in 2008. [B]Engraved
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Zoom lens - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Zoom_lens
A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed focal length (FFL) lens ...
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