Through a combination of luck and good fortune, Kaz and I have three different Canon cameras - a venerable 20D DSLR, an ultra compact IXUS 70 and most recently the G9. Phil wants to know how much he sacrifices when he takes the G9 cross country skiing instead of the 20D and Kaz wants to prove that the G9 she chose to keep (after Phil won it) is really better than the IXUS 70.

Having 'upgraded' to a Hutech modified Canon 40D Digital SLR, I was keen to see how it compared to my existing Hutech 20D and what the optimum settings were for ISO and sub-exposure length. The images and results here for the 20D and 40D should be comparable with a 350D and 450D respectively since they use the same sensor.

If you've ever wondered whether it's possible to use a Meade CCD or SBIG ST4 autoguider with a Celestron mount...it is: here is a document that describes my experience at working out how, seeing as no one at Meade or Celestron or on the newsgroups could tell me at the time, although that was in 1998.

A series of tests with wide angle and telephoto Canon and Sigma lenses, comparing performance on daylight and star targets.

This info is many years old, but perhaps still useful for some! It's a long time since I used any of these..

Finding good astrophotography films is tedious, especially when you have only a limited number of nights and don't want to risk them trying new films. Below are some of my thoughts on films I have used.