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Narrowband

Rosette Nebula Ha/OIII


Dangerous-Dave

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This is a bit of an ongoing project with Astronomik narrow band filters and 300mm/f4 Pentax 6x7 lens. So far, I've got 2 hours of Ha and a bit less of OIII, I will add a bit more OIII and SII when skies permit.

5171737316_e4d11e6c06_b.jpg

Starlight Xpress SXV-H9 CCD camera, Pentax 6x7 300mm/f4 lens at f4, Astronomik 12nm Ha filter, Ha: 13x600s, OIII: 8x800s

Ha was mapped to red, OIII to green and blue, Ha as an additional luminance layer.

This one uses a synthetic green channel to produce silver/gold colour scheme:

5172060706_7b104406ab_b.jpg

Hope you approve.

DD

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That's nice to my eye but it's your eye that matters.

I downloaded your photo and had a play swapping green and blue about and adjusting things but your effort wins.

You have some very nice data there. I look forward to the next iteration :)

Dave

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