Horsehead in Ha Widefield (300mm f4)

[dugnsuz]

Hi all...
Orion has poked it's head over shed and trees - so, here's my first go at the Horsehead.

Canon 40D Modded
Canon 300mm f4L @ f4, iso1600
HEQ5 Pro
17x15min subs

Will probably add more data later (RGB and OIII??)

High Res...
http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=12a.jpg
Cheers
Dougski:D

[AlexN]

Top shot Doug! Looking really nice.. Great field of view!

[dugnsuz]

Thanks Alex - I'm such a sad ass waiting around for the first comment!!!:lol:
But, Cheers
Doug

[RobF]

Very nice Doug. I just love to see this region in Ha.
Glad Orion is visible again without you having had to resort to chain saws too.....:)

[AlexN]

Lol - I do it all the time.. More so when I'm particularly proud of what I've posted!

[dugnsuz]

Thanks Rob - if I wanted to image everything on my wish list, the neighbours on either side would look like bomb sites - have to pick my imaging moments so to speak.


:thumbsup::thumbsup: "..he knows me so well!!!"

[Octane]

Doug,

Maaaaate, that is gorgeous.

But, one criticism: my personal preference would have been to compose the horsey a little further down, in order to grab all of that curtainous region.

Can you tell me what you're using as a hydrogen alpha filter? I'd like to also get one for my 40D. Are they available in differing wavelengths?

Cheers, mate. Keep up the great work.

Regards,
Humayun

[Matty P]

That's a beauty Dougski. A great view of the Horsey. :) Some great detail showing.

More data please! I'd love to see a coloured version. :D

Great stuff. :thumbsup:

[dugnsuz]

Cheers H,
Astronomik 12nm Ha EOS clip in filter...I believe they do a 5 or 6nm version too, but lots more $$$! I think 12nm is the sweet spot for DSLRs though.
Cheers
Doug

[Octane]

Doug,

Thanks so much for the information.

Any local retailers and cost? Or, did you go through OPT or the like?

Regards,
Humayun

[dugnsuz]

Bought both Ha and OIII 12nm filters through OPT - cheapest way by far.
Doug

[dugnsuz]

ps...they also do SII and H Beta EOS clip in filters, but unsure how usefull they would be for DSLR work??

[dugnsuz]

Hope to get some RGB data soon, but got to admit that this region in Ha does it for me!
Doug

[AlexN]

I agree doug, Ha shots of the horse to me almost always seem more pleasing than RGB or HaRGB its nice to see colour from time to time, Shots like Phils recent LRGB wide field are nice, but Ha really brings out the dramatic nature of the target, where as the dramatic nature and finer detail get lost in colour..

[strongmanmike]

Yeh top shot Doug and I agree B&W (Lum or Ha) looks great on this region :thumbsup: :thumbsup:.

I see what Humi is saying too about the framing but if you can take some long (like a few hours!) luminance or in your case colour (DSLR) I think you will fill in that lower dusty half really well and this should better balance out your high placement of the horsey ridge..?

Mike

[dugnsuz]

Thanks for the tips Gents - will take all this on board...ta!! But I thought I had the Horsey itself placed centre stage:shrug:

[Tilt]

That's some handy work there Doug. MEGA long subs! You've really got that DSLR crankin :)

Michael

[dugnsuz]

Cheers Michael - in this weather the 40D certainly is cooking!!! A Central DS cooling mod still looks the go!

[dugnsuz]

On closer inspection there's a fair bit of star elongation on the right hand side of the pic - hadn't noticed them in my rush to bring out the detail in the nebula itself! Might have to go back and pixel-peep each sub more critically I think.
Doug:thumbsup:

[Hagar]

Lovely image Doug, lots of detail. This will be a nice image to add too. The final work should be worth the wait. I love the image scale, it really puts the HH out in space.

[Garyh]

Lovely Ha Doug! Going deep with 15 min subs @ 1600 iso!
Top work there...
Shall be very nice with color added later!

[dugnsuz]

Thanks Doug and Gary - actually, the 2nd night's Ha data was a lot noisier and lacking in contrast in comparison to the first night's data set.
I may try for a much cleaner Ha image before moving on to RGB.
It's too damn hot for uncooled imaging these last few nights!
Cheers
Doug:thumbsup:

[Astrobserver99]

Hi Doug,

Lovely image in Ha with lots of detail

Cheers,