Camera G2-8300FW internal filter wheel with auto-guider set (M48)

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.

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

Colour cameras produce quick results, monochrome cameras capture more detail.

The full well capacity indicates how many electrons a single pixel can hold. The larger the chip, the more sensitive it is to light, and the more electrons it can absorb. But what does that mean? The noise is reduced at a large full well capacity and the ability to reproduce very bright and dark objects simultaneously increases.

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.

Electrons are released in each pixel, whether they are illuminated by photons or not. Each CCD chip generates a certain amount of thermal energy and thus an amplifying signal. As soon as the image of the CCD chip is read out, you will see a noisy image.

The interface is the type of connection or cable between the device (e.g. a camera) and computer, such as: USB, RS232, firewire or analogue video.