astrophotography

Many amateur and professional astronomers have abandoned old fashioned film cameras in favor of new digital technology, and digital cameras can produce some excellent photos of the heavens. One advantage of digital astrophotography is that the CCDs in digital cameras are generally quite sensitive, and of course there is no expensive film to buy. On the downside, digital cameras have a much reduced field of view, and photographers will need to compensate for this reduction.
In order to overcome the challenges of low light conditions in astrophotography, digital photographers rely on a number of techniques and pieces of equipment. Some of the modifications photographers can make to their digital cameras include:
Cryogenic cooling – this cooling will help to reduce thermal noise that could ruin an otherwise good photograph
Biasing
Flat field correction
A good self timer
Manual exposure control
A quality tripod