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Digital zooming can be evaluated depending on optical zoom level. According to optical zoom a digital camera has, zooming in with it would allow you to have a good or a not so good image resolution and quality. The more powerful an optical zoom is, less resolution you would loose. This way, if you wish to acquire a digital camera which would allow you to zoom in by loosing less amount of quality possible you should pay attention to its optical zoom more than to digital zoom itself.
Digital zoom numbers do not really tell much of a digital camera zooming quality. Actually, digital zooming has no limit; it is possible to create digital cameras which offer a digital zooming as powerful as they wish. The digital camera feature which allows us to measure its zooming quality is optical zoom, and it is recommendable to pay attention to that characteristic rather than to digital zoom numbers before acquiring a new digital camera.
Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera & camcorder guide and learn how to take better pictures and shoot better movies.