Widefield Eta and surrounds (70mm f4)

[dugnsuz (Doug)]

Hello all...
Inspired by the mighty jase's "Hibuscus' masterwork I thought I would try the lazy man's version with a 70mm FL.

Canon 40D (modded)
Canon 70-200mm f4L @ f4, iso400

150mins RGB
180mins Ha (12nm Ha filter)

Used separate darks over ICNR with this one.

Processing: ImagesPlus, PS4

Ha blending looks a bit rough on the stars in the heart of the nebula perhaps!?

Hi Res...
http://s327.photobucket.com/albums/k...current=7b.jpg

Cheers
Doug

[dcalleja]

Doug
The hi res version is very nice indeed. I like widefield views like this. Puts a different perspective on some old faves

[TrevorW]

Nice one Dougie I love this region so much going on

[jase (Jason)]

Nothing lazy about 5.5 hrs Doug! Good work mate. 70mm would capture some extreme fields. You should give a mosaic a shot some time. Looking forward to seeing more.

[Octane (Humayun)]

Doug,

Colours aside (I understand that blending hydrogen alpha data with colour data is a difficult process), this is a beautiful image.

I just love IC 2602 hanging off to the right there. Magic.

I'm so happy to read you're undertaking multi-hour projects now. And, using separate darks, too. How're your flat fields? ; )

H

[dugnsuz (Doug)]

Originally Posted by dcalleja

Doug
The hi res version is very nice indeed. I like widefield views like this. Puts a different perspective on some old faves

Cheers - I too am a fan of the 30,000ft perspective.

Originally Posted by TrevorW

Nice one Dougie I love this region so much going on

Thanks Trevor

Originally Posted by jase

Nothing lazy about 5.5 hrs Doug! Good work mate. 70mm would capture some extreme fields. You should give a mosaic a shot some time. Looking forward to seeing more.

I have no excuse jase - might have to try some mosaic work with my 300mm f4L soon.

Originally Posted by Octane

Doug,

Colours aside (I understand that blending hydrogen alpha data with colour data is a difficult process), this is a beautiful image.

I just love IC 2602 hanging off to the right there. Magic.

I'm so happy to read you're undertaking multi-hour projects now. And, using separate darks, too. How're your flat fields? ; )

H

Cheers H - Re flats...I'm using a library set of Flats I did about a year ago!!! I know, I know!!!
They still seem to work - but I'm sure that ancient dust in those images has moved on by now!!! Something else for the to-do list.

Anyways, here's the ubiquitous repro with those blue stars tamed a bit...
http://s327.photobucket.com/albums/k...current=7c.jpg

[Octane (Humayun)]

That looks markedly better, Doug.

However, you've now added a slight green cast to the background.

Try selecting just the background sky and fixing the channels for it separately.

H

[dugnsuz (Doug)]

Originally Posted by Octane

That looks markedly better, Doug.

However, you've now added a slight green cast to the background.

Try selecting just the background sky and fixing the channels for it separately.

H

See what you mean - my morning eyes are quire different to my tired evening ones H!

Repro of the repro...
http://s327.photobucket.com/albums/k...current=7d.jpg

[Craig_L]

Good one Doug. Been meaning to have a go at this with the 7D but can't seem to come at chilly temperatures. Craig

[dugnsuz (Doug)]

Originally Posted by Craig_L

Good one Doug. Been meaning to have a go at this with the 7D but can't seem to come at chilly temperatures. Craig

Ya big wuss!!!