My Path to Astrophotography

Back to Contents   I started as a visual amateur astronomer, way back in 1984, and in the next twenty years I was more often off than on with the hobby. Then in 2005 I decided to have a (more) serious run at it, refurbishing the old equipment and buying much new one, since in … Continue reading My Path to Astrophotography

Acquisition Technique

The basic technique, when you cannot rely on autoguiding, is to take short exposures. While "classical" astrophotography, since the time when film was used instead of CCD/CMOS sensors, is based on acquiring a relatively small number of long exposures of the same subject (usually just one picture when film was used), relying on some form … Continue reading Acquisition Technique

Field Rotation … aka The Bogeyman

Field rotation can really be considered the bogeyman of DSO astrophotography with altazimuth mounts, indeed all those who object to the possibility of doing any serious AP with AltAz mounts invariably quote it as THE main obstacle. So, what is it and why is it so bad for altazimuth astrophotography? It has been explained a … Continue reading Field Rotation … aka The Bogeyman