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Explore Scientific Nebula H-alpha 12nm

explorescientificusa.com/.../nebula-filter-h-alpha-2-inch-12nm
Frozen as ambiguous
TypeHydrogen-alpha (Hα)
SizeOther
Bandwidth12 nm
Users 7
Images 22
Most often used with

There doesn't seem to be anything here.

Also available in the following variants:
1.25"
2"
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