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For the uninitiated, understanding camera lens specifications and descriptions can be a daunting task. This understanding, however, will allow you to have much more creative control over your photography. With this understanding, you will be able to decide which lens is the best fit for your photography and balance cost, size, weight, lens speed, image quality, and stability control. This guide will provide an introduction to basic concepts of camera lenses, such as image quality, focal length, perspective, prime vs. zoom lenses, and aperture or f-number, so you will know exactly what features to look for in a lens.