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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...
Daystar Filters Sol 100mm dedicated solar telescope lands
Thursday, October 23, 2025 by Richard Harris
Before I ever owned a real telescope, I was building makeshift ones out of whatever lenses, tubes, and mirrors I could scrounge up. Newton would’ve been proud, or maybe concerned. And solar projection was the only way I could safely look at the Sun back then; anything more sophistica...
Altair 462M2 mono guide astronomy camera
Tuesday, July 22, 2025 by Richard Harris
If you’ve spent more than a few nights trying to pull sharp exposures out of a shaky guiding setup, you’ll know it doesn’t take much atmospheric wobble or poor star signal to throw off your whole session. The Altair 462M2 Mono Guide Camera takes a practical approach to solving thos...
Planet Stacker X
Wednesday, June 4, 2025 by Russ Scritchfield
Planet Stacker X is a macOS application developed by Open Reel Software and distributed via the Rain City Astrophotography website. It is designed for planetary astrophotography, specifically using the method known as Lucky Imaging. This software allows Mac users to process high-speed planetary vide...