‘Megapixels’ is the the number of pixels on a camera sensor in millions. Each pixel on the sensor corresponds to a pixel in the photo. It’s the biggest selling point for digital cameras, though these days the sensor size is [...]
Tag Archive for 'Megapixels'
The level of random variation in the pixels of digital photos. The pixels (photosites) on sensors record the levels of light falling on them as an electrical signal. However, there’s always a certain level of random background electrical activity which [...]
Different types of digital camera use different sized sensors. Ignoring specialised studio cameras, the largest are in full-frame digital SLRs, the next largest are in APS-C format SLRs and Four Thirds cameras, while the smallest are in compact cameras.
The physical [...]
The size of a digital image in pixels. A 12-megapixel digital SLR image, for example, may measure 4,000 pixels by 3,000 pixels (3,000 x 2,000 = 12 million).
Basic building block of digital photos. Every digital photo is made up of pixels, and each pixel is a square block of a single colour. Viewed from far enough away, the pixels and the colours merge to produce the impression [...]
The pixels on the sensor actually used to make the photo. Not all of the pixels (photosites) on a sensor are used to form the image. Strips around the edges are used by the camera for internal calibration purposes. Hence [...]