NGC7000 - 20221110 - TS72F6 - Ha with DSLR (altazastro)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: NGC 6997 · NGC 7000 · North America Nebula

NGC7000 - 20221110 - TS72F6 - Ha with DSLR, altazastro

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NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

Powered byPixInsight

NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

This was a test to verify how well my modified Canon EOS 2000D performs with a narrowband filter.
There was a lot of compromises: the "narrowband" filter is indeed 35 nm wide and it is a 1.25" one, applied on the 1.25" nose of the Evoguide flattener, which means that there is an overall significant vignetting.
The processing applied calibration files to the original RAW files and then splitted the channels with Astro Pixel Processor, only the calibrated R channel images were then stacked to give the final pic.
Considering that incoming clouds limited the total integration time to less than an hour, that with the above mentioned way of processing just one pixel every four is used, and that the sensor's Q.E. is about 51% maximum (in the green I suppose) to begin with, the overall result is not bad.
Clearly a dedicated monochrome sensor (even an uncooled one) would be greatly superior, but an APS-C mono sensor is yet out of my reach.

Original
Final
B

B

Title: More gentle LP removal

Description: More nebulosity but also less sharp.

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Status	Basic success
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Astrometry.net job	6565705
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NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

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NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

NGC7000 - 20221110 - TS72F6 - Ha with DSLR

Revision title: More gentle LP removal

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