Opt Zoom

If you're new to photography, find out what you need zoom power and differentiation between different types of zoom can be overwhelming. A series of new terms in reference to zoom have recently been introduced in the language of marketing for the manufacturer of cameras, which only heightens the confusion. This article is aim to bring a little more light on the problem and help you make a good decision to purchase.

Most mid-priced digital cameras 3X/4X have a lens built. These numbers refer to the optical and digital zoom. Most cameras have optical and digital zoom, with the exception of a low cost the few, that tend to dull and fuzzy photos. A digital camera's zoom function is very similar to a film camera and not the same, ie what the closest subject. However, in digital cameras there are two types of optical and digital zoom. The optical zoom is similar to a camera zoom traditional.

Digital zoom, on the other hand, simulates the zoom of the bombing of a selected portion of the image. Not to be confused with photo editing, which refers applications used to modify the image after it has been produced. Another common misconception of this type of zoom is that it is particularly useful for large photos distance. This can not be further from the truth. The optical zoom is far more important in a digital camera and should be used as a criterion for comparing different models instead of digital or total zoom.

The quality of a digital camera is more dependent on optical zoom. To create even more confusion, manufacturers have started using the term "total zoom. In fact, there is no such thing. At best, you can refer to the fact that the camera has two types of functions digital and optical zoom. Traditional cameras as 35 mm or APS only had optical zoom. The optical zoom uses a lens built to bring the image closer extends only a portion of the image. In other words, the cultivation of part of the image and extends the rest, resulting in a loss of quality. It works the same way crop and resize the application options photo editing. Another new term in digital photography is the Smart Zoom '. This avoids the sort of zoom interpolation and thus maintains the image quality.

People sometimes compare a resolution optical zoom when purchasing a digital camera. This makes no sense. The power of digital zoom and resolution are two different things, unconnected. The resolution expresses the number pixel of the image, while optical zoom refers to the power of the lens. It has nothing to do with the resolution and can not increase or decrease. Another trend is to disable the digital zoom camera. Many photographers do not rely on this role and preferred to cut and resize the picture on the computer. This practice is not very sticky, because it diminishes the effectiveness of the camera.

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Fuji S2000HD Optical Zoom test in shaded sunlight

Opt Zoom

Opt Zoom