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tornado33
10-12-2005, 01:59 PM
Had a go at the good ol Horsehead.
[IMG]http://www.iceinspace.com.au/forum/attachment.php?attachmentid=7180&stc=1
Its 3 x 10 mins ISO 1600, 10 inchf5.6 scope, EOS 300D, MPCC and UHCS filter. Dark subtracted in IRIS.
Its a hard object for unmodified DSLRs as nearly all the light is H Alpha only (maybe a hint of H Beta). I must see how a H Beta filter goes on it one of these days :).
Stacking and final processing done in Photoshop and Noiseware.
It was almost warm for these shots, about 18 degrees Id say.
Scott

RB
10-12-2005, 02:28 PM
Hey awesome shot Scott.
Nicely focused and guided.
Amazing to see the detail the 300D picked up especially since the temp was warm.

h0ughy
10-12-2005, 02:48 PM
Lovely scott just beautiful. Have you seen Strikers with the 20da?

tornado33
10-12-2005, 03:23 PM
Thanks folks.
IRIS does do a pretty good job of dark subtracting.
Yes Id love a 20DA or even a modified 300D :)
The live focussing of a 20DS would be nice too.
Scott

[1ponders]
10-12-2005, 03:30 PM
Nice shot Scott. Good to see you're still getting some sky time with all the "charming" weather around.

I'm thinking about putting a pier in the back yard. Do you leave your mount permanently attached to the pier or do you remove it after each session. If you leave it how do you protect it from the weather?

h0ughy
10-12-2005, 03:37 PM
this is rather a technical issue Paul. he gets the protection via a system of neoprene insertion barrier with a polymer modified barrier protection system with automatic dehumidifyer.

yes thats right he has a plastic bag and a upturned garbage container! moisture driven off by the suns heat!!!:lol: :wink2:

Striker
10-12-2005, 03:48 PM
Nice horsy Scott...and well framed.

tornado33
10-12-2005, 05:24 PM
Thanks all .
Yep I remove the scoipe from the mount cradle and take it inside. I cover the plastic drive wheel and motor with rags, put a wheelie bin over the whole mount, than put on an upturned garabe bin, that way even in a torrential storm it will be protected, even from hail. The counterweights are left on as well, so nothing short of a tornado would move it. The yard is fenced in on all but the front side and cant be seen from the front of the house, and with the heavy counterweights on, (and a little neighbours dog that is an excellent watchdog) means security is pretty good :)
The rough part of the setup is that the legs sit on lumps of concrete on the grass, its had months to settle and is quite stable now.
Heres a pic of it in its current position but before I put the lumps of concrete under the 3 legs. http://www.users.on.net/~josiah/temp/scope.jpg
Scott

[1ponders]
10-12-2005, 06:49 PM
thanks Scott. That's a serious finderscope you've got there :P

seeker372011
10-12-2005, 06:50 PM
nice shot Scott..makes me want to try the HH again

PhotonCollector
12-12-2005, 06:02 PM
Wow Scott, this is really a great image -

you've done very well.

I love it !

Paul

xelasnave
15-12-2005, 08:06 PM
I saw this when you first posted and meant to say then I think that is terriffic. Its the one I want to really perfect but it will be a while before I can manage as good as this one
alex

tornado33
15-12-2005, 10:23 PM
Many thanks all :)
Its always been the holy grail to get even a half decent Horsehead pic :)
Scott

PhotonCollector
15-12-2005, 10:39 PM
Hello xelasnave,

Thanks for your compliment. Yeah I am waiting to tackle the Horsehead Nebula again, too. Last time it was windy and I had to call it quits.

Paul

h0ughy
15-12-2005, 10:39 PM
yes the "grail" look wonderful with a holy handgrenade! A nice Nagller 31mm, so provide some more Scotty, don't let the cloud put you off! A photo montage from the M42 to the horsehead would be nice!!!