My dear friend Ray died yesterday.
Author Archives: David
Focus Stacking
I’ve been playing on-and-off with a NSI Macro Focusing Rail, for taking extended depth of field macro photographs. The focus rail mounts between your tripod and the camera to allow very precise movements of the camera, with the focus locked. You move the focus plane across the object bing photographed, taking multiple images, each with …
Unexpectedly in Minnesota
A better account of a comet
Another clear night saw me trying to capture the comet again. This time with a longer lens. The comet is getting higher in the sky, and today is the closest approach to Earth (so it might be a bit brighter). Still no progress on getting my telescope mount back from the repair place, so I’m …
“An imperfect account of a comet…”
to quote Caroline Herschel. There’s a buzz in the media over the rare green comet that’s whizzing past us right now. It’s fuelled in part by the colour (almost certainly not visible to the eye (especially from light polluted regions)), and in part by spectacular images from big telescopes. I like comets, and try to …