What is a zoom lens and why should you use?
Until recently purchased a camera lens when it is most likely "have a" fixed focal length. This essentially means that the increase was the same, was, and could not be changed (or if it could, it would be soon enough).
What was good for the simpler situations and can be used as an increase in "optimal" in the location, records standard.
But if you want to approacha topic, you had your feet or have to "buy another" telephoto. This enlarges the subject that may be closer than it appears.
And if you want your topic to see the other side, it "had to retire or get a" wide angle lens. It would see the subject more than it had to do.
Zoom lenses are designed to be able to change the magnification with simple commands . A telephoto lens (or long) that normally zoom enlarges the subject, as you saw, from normal to above - how you look close to the action. A wide-angle (or short) would be zooming to the subject - which could be further from your subject to appear and enlarge.
Both types of lenses, you can choose from all stages of magnification.
Now, almost all cameras are equipped with a> Zoom lens - these cameras are compressed and for the most serious mind. These zoom lenses are usually a compromise and take the angle between two larger and medium-quality fabrics and are generally very reasonable.
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