12 Feb '18, 3pm

What are pixels?

What are pixels?

Strictly speaking, pixels refer to the building blocks that make up a picture-but people often use the term when they mean the photosites on a sensor, too. Each site produces information for one pixel-but the final image is created by the camera software. When you buy a camera, check the camera’s specifications in its manual to find how many “effective” pixels it contains (usually given in mega or millions-pixels: MP). This is very close to the number of photosites on the sensor and is referred to as the sensor’s resolution. Most people buying a digital camera assume (mistakenly) that more is best. Image quality will depend on a number of factors other than quantity of pixels: It is also related to the size of the photosites and how closely they are packed together, the processing used by the camera, and the optics in front of the sensor.

Full article: http://sops.sg/what-are-pixels/

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