Lobster in Ha - the last supper!

[dugnsuz]

Sick of eating Lobster!!
Managed to get 270mins of Ha Lobster data but blending it with my flawed RGB data made me realize that I'm flogging a dead horse...so enough already!!!

Posting the Ha data to put this crustacean to bed!

Doug

High Res...
http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=22d.jpg

[Craig_L]

Hi Doug, looks very good. Lots of detail that I didn't see in the RGB. You may need some shorter exposures to deal with the bright patch. I'd persevere with a blend - even an HaGB.

[Hagar]

Looks like nice data Doug, Shame you are having problems with the blend. You really don't need a lot from the RGB to get a nice blend and pretty impressive image with this as a lum layer. I do this blend in PS using the RGB as a base image and copying the Ha over the RGB and then set the blend mode to lum and adjust the opacity till I get a reasonable image to my eyes. The hardest thing is the star colour.

Good luck with it all mate. Too much to learn isn't it.

[renormalised]

Need Crab:thumbsup::P:P:D:D

Great piccie, though. Lots of detail, as befitting Ha:):)

[leon]

Hmmm, quite like that one Doug, ;) looks pretty sharp, and detailed, I have always had a thing about B/W images. :thumbsup:

Surly your not giving up are you :shrug:

Leon :thumbsup:

[dugnsuz]

Final HaRGB blend.
Link to High Res...
http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=22b.jpg

Doug:thumbsup:

[renormalised]

Very, very nice, Doug!!!. The detail in the shot is quite amazing and the colour really just tops it all off. Well done:D:D

[dugnsuz]

Thanks Craig,Doug,Carl and Leon
Moved on at last - bad data and bad weather makes for a vicious cocktail!
Cheers all
Doug

[DavidU]

Killa shot !Great:thumbsup:

[Tamtarn]

That's finished up very good Doug, plenty of detail with nice sharp contrast.
Enjoy your dinner.

[dugnsuz]

David, B&D - Thanks:thumbsup:

[Craig_L]

Turned out really well Doug and not over-cooked. The Ha blend has worked really well to give more texture and detail. Really nice star colours. Well done. Whats next? A prawn perhaps?

[dugnsuz]

Thanks Craig, and No!...I think I'll lay of the seafood for a bit.

The clear skies early on last night allowed me to test out some theories as to why I got such dodgy stars in the RGB (asymmetrical and with a bit of CA). Thought it might be coming from a. addition of A 1.4x extender to the 300mm lens or B. the step down ring I use to fit my 72mm LPS2 filter to the 77mm diam lens.

Culprit..."B"
Lens performed beautifully at 300mm and 420mm without the filter.
Once I established that the filter was at fault I tried to remedy it by stopping down to f8 - and as expected this fixed the problem. Although, now I have the diffraction spikes from the blades of the lens on the stars!

Attached is a 40min stack of M8/M20.

Cheers
Doug:thumbsup:

[Craig_L]

Nice and round and sharp. Might be worth trying another ring in case that one was faulty - out in pitch, warped or something. Otherwise you will be stuck with F8 and longer exposures which will have limitations.