Camera 9c Color

For long exposure times, many CCD cameras are cooled to reduce thermal noise and achieve higher image quality. CCD cameras are grouped into three categories:
- no cooling
- passive cooling via cooling fins
- active cooling (e.g. using a fan and Peltier element)

Specifies the edge length of the mostly square pixels that make up a camera sensor.

The chip size comprises the outer dimensions of the chip. The larger the chip, the larger the image field produced.

The resolution of a sensor is expressed as the total number of pixels. In digital cameras it is usually specified in megapixels. However, the specification of the number of single pixels in a vertical and horizontal row is more precise, for example 2048x2048.

The bit depth is also referred to as the dynamic range of a chip. The number of bits in a picture also determines how many different shades of grey can be displayed. The depth of the image information depends directly on it. In an image taken with 1 bit depth, you will only see black and white dots. In this case, you can hardly call it a picture. Many details that the naked eye can discern are missing. 16 bits means the presentation of more than 65.000 shades of grey.

Each CCD camera tends to produce image noise, an interference that appears as a kind of unattractive grain on the image. The issue is especially important with longer exposure times. In addition to the general noise, there is also a noise generated by the process of reading the image: the read noise.

The minimum exposure time, in seconds, that is possible with this camera.