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Old 05-02-2011, 01:50 AM
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Octane (Humayun)
IIS Member #671

Octane is offline
 
Join Date: Dec 2005
Location: Canberra
Posts: 11,159
The Eta Carinae Nebula (NCC 3372) in Carina - Mark III (higher resolution linked)

Well.

Here it is, proper first light for the SBIG STL-11000M and the Takahashi FSQ-106N. My very first ever hydrogen alpha + LRGB image. This is the first time I've ever combined monochrome images to form a composite. Wow, what a rush it was to finally see colour on screen.

Click here.

It's only taken me, what, nearly a year to take my first proper image since purchasing this immaculate gear? I think the wait was worth it.

This image was captured over six nights, totalling 10.5 hours of data. That's right, I don't do anything half-arsed.

To say that I'm pleased would be an understatement.

Would love to hear from the seasoned monochrome imagers as to things that could be improved.

I ditched IRIS and switched to MaxIm DL 5 to calibrate, register, align and stretch. I really miss IRIS' stellar registration routine, as it's second to none, but, IRIS is really designed more for DSLR work.

H-alpha+LRGB; 160 187.5 93.75 93.75 93.75
H-alpha and L bin 1x1, RGB bin 2x2

H-alpha was blended as a luminosity layer at an opacity of 64% to help suppress the overwhelming star field and to provide further contrast/definition in the nebula. Slightly cropped to remove registration artifacts between frames and to maintain a 3:2 aspect ratio.

Dedicated to Frank (spearo) and his partner Lisa for all their hospitality and kindness. Thanks, guys.

Comments, critique, etc., most welcome.

H
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Last edited by Octane; 06-02-2011 at 04:06 PM.
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