We also know that is not the same between definition and detail if we take an image at a short distance in a macro so that if we took a photo to a farther distance with a telephoto lens

Definition (sharpness) describes the amount of detail in a photograph, is one of the most important variables in capturing the texture of the object. The picture definition is given by different parameters, these can be modified in a post-process or may be taken into account when shooting.

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I just read an article by David Pouge in the NY Times on the top 10 considerations for a digital camera that is missed. I will summarize each item for those who do not get along very well with English. But it’s worth making the effort to read it, is a must

1. Use “pre-focus” to reduce the problem of delay that usually have a digital camera in autofocus mode, just press the shutter half-time to give the camera to focus, then shoot. Very useful when you want to capture an image that happens very quickly
2. Do not believe the myth of megapixels. Megapixels do not make a good camera.
3. Ignore the digital zoom. In its quest to sell a camera, the manufacturers add digital zoom merely “stretch” the picture rather than closer. For best results, turn off digital zoom option. The optical zoom is really worth it and this is a lens that can actually bring an object. Read the rest of this entry