Why astrophotographers don't use Hb filters? (Gabriel Giannini de Cunto)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · The star 12 Mon

Why astrophotographers don't use Hb filters?, Gabriel Giannini de Cunto

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Why astrophotographers don't use Hb filters?

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Why astrophotographers don't use Hb filters?

Why astrophotographers don't use Hb filters? The image shows Rosette Nebula in three images: the top left with a Hb & SII filter, the top right with a Ha & OIII filter, and the bottom with a combination of both images, where it is possible to see the beautiful blue color that comes from the Hb emission.
So, why don't use Hb filter? The truth is that Hb is a clone of Ha, once both come from the same atom (hydrogen), but in blue color and with 30% of Ha strength. There is no new information. In fact, it is even bad to use Hb because noises are introduced in the image since the atmosphere and the standard telescopes don't work well in blue color.
But the Hb is there, and its beautiful blue color should not be forgotten.

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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Why astrophotographers don't use Hb filters?

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