Differences Optical Zoom and Digital Zoom In pocket or prosumer camera, usually available two facilities for the zoom is optical zoom and digital zoom. Both are indeed serves to zoom: For close to objects so that objects that want to target appear larger.
But although the same goal, the workings of optical zoom and digital zoom different.
Optical zoom, as the name implies, utilizes a short length of the lens to zoom in / out objects. The longer the lens, the greater its ability to enlarge an object, so details remain caught even object photographed from a great distance.
zoomIngat when we use the zoom, the camera lens we zoom back and forth according to what we want? That means we use the optical zoom.
Digital zoom is a facility to enlarge the images using software that is on camera. Simply this: the digital zoom is the same as if we're using computer applications such as Photoshop to enlarge an object that we take.
Technically, the camera images that we take dicrop according to our wishes when doing zoom. Because dicrop, image size would be smaller. Therefore this image then enlarged by means of interpolation. In this process, the image resolution is not increased. Pictures get bigger, but with the same resolution the original picture smaller.
So do not be surprised if the images using the digital zoom is not "as beautiful as the original."
But this does not mean the digital zoom is not proper to use. Sometimes we want to take something with zoom, while the zoom of the lens has a maximum and can not be greater. By using the digital zoom we can 'add' the ability to zoom further, beyond the ability of the lens.
So what if after using the digital zoom is still not enough? Do not be sad, use computer applications to edit the alias to cropping a photo to get the desired result. After all, this technique is about the same as that taking place in our camera when the digital zoom.
But do not forget: any sophisticated our camera, optical zoom and still provide results with a much more satisfying resolution than digital zoom.from google translate yafi blog
But although the same goal, the workings of optical zoom and digital zoom different.
Optical zoom, as the name implies, utilizes a short length of the lens to zoom in / out objects. The longer the lens, the greater its ability to enlarge an object, so details remain caught even object photographed from a great distance.
zoomIngat when we use the zoom, the camera lens we zoom back and forth according to what we want? That means we use the optical zoom.
Digital zoom is a facility to enlarge the images using software that is on camera. Simply this: the digital zoom is the same as if we're using computer applications such as Photoshop to enlarge an object that we take.
Technically, the camera images that we take dicrop according to our wishes when doing zoom. Because dicrop, image size would be smaller. Therefore this image then enlarged by means of interpolation. In this process, the image resolution is not increased. Pictures get bigger, but with the same resolution the original picture smaller.
So do not be surprised if the images using the digital zoom is not "as beautiful as the original."
But this does not mean the digital zoom is not proper to use. Sometimes we want to take something with zoom, while the zoom of the lens has a maximum and can not be greater. By using the digital zoom we can 'add' the ability to zoom further, beyond the ability of the lens.
So what if after using the digital zoom is still not enough? Do not be sad, use computer applications to edit the alias to cropping a photo to get the desired result. After all, this technique is about the same as that taking place in our camera when the digital zoom.
But do not forget: any sophisticated our camera, optical zoom and still provide results with a much more satisfying resolution than digital zoom.from google translate yafi blog
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