Photography - creative & technical
revised 14 Dec 10Star photography - trails or no trails
revised 29 Oct 11Astrophotography with a simple compact camera
revised 25 Mar 11Camera following the stars - stacking
revised 31 Mar 11Photography through the telescope
revised 26 Mar 11Exposure settings for astrophotography
revised 30 Mar 11My latest & best astrophotographs
revised 25 Jan 12Whole-sky photos - the Milky Way
revised 10 Oct 11Deep sky: star clusters, nebulae & galaxies
revised 11 Oct 11Solar System 1: Sun, Moon & major planets
revised 9 Oct 11Solar System 2: comets, meteors & minor planets
new 9 Oct 11Resolution, field of view, etc
revised 31 Mar 11Hints & tips for using a SkyWatcher telescope
revised 22 Mar 11My usual astrophotographic process
new 27 Dec 10Plotting realistic star charts
revised 9 Dec 09Processing steps for astrophotographs
revised 16 Jan 10Menus available on each image window
revised 13 Oct 09How to subtract photos with GRIP
new 9 Apr 07How to open RAW images in GRIP
revised 10 Apr 07How to recombine colour channels with GRIP
new 9 Apr 07How to measure the diameter of a pinhole
new 10 Apr 07How to estimate unknown magnitudes of stars
revised 15 Feb 10Panoramas & overlapping photos
Plotting positions of solar system objects
new 3 Jan 08Reading & writing images in Java
revised 23 Nov 11Blob detection and measurement
new 23 Nov 11