What determines pixel density in cameras?

Pixel density in cameras is defined by the number of pixels per unit area, which is critical for determining the detail and clarity of an image. Higher pixel density allows for finer details to be captured, meaning that more information can be recorded in a given space. This is particularly important in applications that require high-resolution images, such as surveillance or professional photography.

The other factors mentioned, such as the amount of light captured and the size of the lens, can influence image quality but do not directly determine pixel density. While resolution contributes to the overall image quality, it is essentially the result of pixel density and not a standalone factor. Thus, it’s the pixels themselves, arranged in a defined area, that establish how sharp and detailed the captured image will be.