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Why luminance frames miss narrowband nebula details

Monday, October 13, 2025 by Richard Harris

So you've spend a clear night capturing the Orion Nebula with your monochrome astrophotography camera. You shot one image through a luminance filter (essentially capturing all visible light), and another through a special Hydrogen-alpha (Hα) narrowband filter. When...

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Solar telescope eyepiece Daystar Quark H-alpha reviewed

Saturday, May 25, 2024 by Richard Harris

Imagine you're at the hottest concert of the year, but instead of front-row seats, you've got a telescope pointed at the Sun. Now, you wouldn't stare straight at those blinding stage lights without protection, right? That’s where a solar eyepiece comes in – it’s like th...

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