Brand: BenQ Model: DC C500 Megapixels: 5.00 Sensor: 1/2.5" (~ 5.75 x 4.32 mm)

The sensor has a surface area of 24.8 mm². There are approx. 5,000,000 photosites (pixels) on this area. Pixel pitch, which is a measure of the distance between pixels, is 2.23 µm. Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. 

Pixel or photosite area is 4.97 µm². The larger the photosite, the more light it can capture and the more information can be recorded. 

Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor. BenQ DC C500 has a pixel density of20.12 MP/cm².