Chroma - H-alpha 3nm Bandpass optimized for f/2.8-f/3.6 (2") Archives - Modern Astronomy https://modernastronomy.com/product-tag/chroma-h-alpha-3nm-bandpass-optimized-for-f-2-8-f-3-6-2/ Visual and Electronic Astronomy... Sun, 19 Apr 2026 11:45:25 +0000 en-GB hourly 1 Chroma – H-alpha 3nm Bandpass optimized for f/2.8-f/3.6 (2″) https://modernastronomy.com/shop/filters-wheels/chroma-filters/narrowband-chroma/chroma-h-alpha-3nm-bandpass-optimized-for-f-2-8-f-3-6-2/ https://modernastronomy.com/shop/filters-wheels/chroma-filters/narrowband-chroma/chroma-h-alpha-3nm-bandpass-optimized-for-f-2-8-f-3-6-2/#respond Sun, 19 Apr 2026 11:45:24 +0000 https://modernastronomy.com/?post_type=product&p=95337 Chroma - H-alpha 3nm Bandpass optimized for f/2.8-f/3.6 (2")

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