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| Resolution | |
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The number of pixels used to create an image; the higher the resolution level, the clearer, more detailed your images will appear |
| Pixel | |
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Picture element; the
basic unit of programmable color in a computer-generated image.
Whatever the sensor and exposure type, digital cameras are qualified by the pixel count the sensors deliver. Digital cameras that deliver under 1 million pixels are considered best for web page (or screen only) images, and snapshot size prints. |
| Megapixel | |
|
CCD resolution of one
million pixels
Digital cameras that yield over 1 million pixels, dubbed megapixel cameras, can be used for a wider variety of output, including moderately-sized prints, and are aimed at the avid amateur and business (real estate, insurance, etc.) user. |
| Interpolated resolution | |
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Refers to a digital means of adding pixels to an image; the end result is the appearance of an enlarged or magnified image |
| Common Resolution Guidelines | |
| 640x480 | |
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Low-end resolution typically used for email and posting images up to 4"x6" on the Internet |
| 1024x768 | |
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Resolution range sufficient for printing 4"x6" images on your photo printer |
| 1280x960 - 1 megapixel | |
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Advanced resolution level suitable for generating 5"x7" prints on your photo printer |
| 1600x1200 - 2 megapixel | |
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Extremely high-end
resolution; the best choice for printing 8"x10" prints
Multi-megapixel cameras, those that are capable of delivering image file sizes over millions of pixels, are used by professional studio photographers, scientists and artists to create full-color illustrations for magazines, posters and all manner of printed images. |
| 2048x1536 - 3 megapixel | |
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The highest level of
resolution currently available; delivers optimal color and sharpness for
larger-sized images.
Any camera offering more than 2 megapixels is good for making prints up to 8x10 inches with near-photographic quality. |
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