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View Full Version here: : Maaaaaaates! - M8 and M20 Narrowband


SimmoW
14-09-2016, 06:42 PM
Yay, my first ever narrowband image taken with my own equipment! Can you feel the excitement? Sorry, I digress....

Taken with the new ASI1600 mono-cooled cam and Takahashi E-130D astrograph, camera at -15c, this is 13 shots of 3nm Ha @ 5 mins each and 10 shots of 3nm SII, same exposure. Taken from my outer suburban backyard in Melbourne.

I created an artificial O3 channel using a combo of the 2 filters' data. Don't ask me what palette I used, I winged it, though I do recall SII was red...

Rather pleased with the variety of hues I got out of this. Loving the smooth nature of the CMOS sensor images.

Processed in Pixinsight, PS and Lightroom, oh and starless neb details added via Straton.

C&C welcome, I'm very new to this, so excited to be doing this stuff!

I'll be trying 10 min subs soon, though PI says 5 mins is maximum for my site - so I hope to stack a lot more subs in future - cloudless future I mean! Bloody overcast down here lately as most of you know.

https://drive.google.com/open?id=0B761Sh7cppxScUJGWTMzNHhsaj A

RickS
14-09-2016, 07:15 PM
Congrats on your achievement, Simmo :thumbsup: Good luck with those clouds ;)

Andy01
14-09-2016, 07:24 PM
Thanks for posting this Simmo, I can get a lovely suntan basking in the warm glow of the image and feel like I'm on holidays whilst wearing my sunnies :)

Great start, but really needs the O3 for depth imo.

Bet you're loving those new toys :)

DJScotty
14-09-2016, 09:05 PM
Wow Simmo.
That's a great shot.
Really shows what this camera is capable of.
IF my 6nm Ha filter ever arrives AND IF the clouds ever disappear, I will be hoping to test the 10 minute limits of the ASI1600mm myself.
Good luck with the rest of the photo!
Scott

strongmanmike
14-09-2016, 09:07 PM
Rather, well :question:...wacky! :D...but cool :thumbsup:

Congratulations on your first NB image with your own equipment, very satisfying I am sure :thumbsup:

Mike

SimmoW
15-09-2016, 10:51 AM
Hey thanks Rick, yep we all need that luck!



Hmm, so I better severely reduce my image to be as subtle as yours then :D. Yes I'll grab equivalent O3 data when I can, hopefully by 2017!



Thanks Scott, I'm already sure that 10 mins will be too long. Cloudy Nights forum is proving that gain 200 is the best setting, meaning that 3-5 mins should be perfect. Best accessory will be a larger disk drive!



That's great Mike, thanks, especially as I managed to do some sneaky deconvolution in a pretty subtle way and it seems to have snuck thru without comment!

strongmanmike
15-09-2016, 01:57 PM
:lol: well done... that's no mean feat :eyepop: :thumbsup:

Mike
Decon and Wavelettes Police

atalas
15-09-2016, 05:49 PM
Onya cobber:thumbsup:

Slawomir
15-09-2016, 07:12 PM
What a great image Simon, looks like you had some good practice with narrowband data in the past! :thumbsup:

But...wait a second...do I see some decon artefacts?.... Just kidding! Awesome work.

SimmoW
16-09-2016, 11:02 AM
Thanks again fellas, encouragement is appreciated, especially when spending those long 115 minutes imaging, Hahahahahaha. I think it took me longer to stack!

lazjen
17-09-2016, 10:11 PM
Nice, should look very good when you get OIII.

What settings did you use for the ASI1600?

SimmoW
17-09-2016, 11:36 PM
Thanks Chris. I had the camera set at -15c, gain 139 and offset 20. Tried dithering but it delays imaging time considerably and isn't that effective for such a noiseless camera