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Optolong L2 Dual Combo Filters Review
Thursday, July 30, 2026 by Jim Thompson
Optolong's multi-narrowband (MNB) filter is called the L-Synergy. It has a 7nm wide pass band at O-III and another at S-II. When paired with their existing L-eXtreme filter and a one-shot colour (OSC) camera, one is able to produce nebula images using the Sulphur-Hydrogen-Oxygen (SHO...
Astrophoto processing: when you've gone too far
Wednesday, March 18, 2026 by Richard Harris
I have two truths rattling around in my head every time I sit down to process a deep sky target. The first is that we are standing on a pile of new tools that really do make this hobby easier. The second is that the same tools can quietly move us from astrophotography into something closer to digita...
The smart telescope head fake
Wednesday, November 12, 2025 by Richard Harris
As many of you know, I love astronomy and astrophotography, and over the years I've poured more into telescopes and cameras than I'd care to admit. So when I see a smart telescope on the market for a few hundred dollars promising gorgeous cosmic photos with the tap of an app, like ...
Astronomy in November 2025
Wednesday, November 5, 2025 by Richard Harris
This month offers a bit of everything: a once-in-a-lifetime interstellar visitor passing through, a brilliant supermoon lighting up the sky, two bright comets fading out after their October glory, planets dancing in interesting ways, and even a couple of meteor showers ...