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  #21  
Old 09-02-2014, 08:36 PM
adi (Avi)
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help needed

Quote:
Originally Posted by nebulosity. View Post
Now that I got my camera cooled I thought I'd try Orion again and see if I could get it any better, not sure.

Anyway, 120x160 sec subs at Iso 1600, 350D. Lens, Nikon 50mm at f8.

Cheers
Jo
thats nice capture... would you please explain your setup? i have Nikon DSLR and i am buying 8" Dob next week. would you please guide me what all i need to capture such images? i red so many places that i need Canon for low such photos as Nikons are bad when it comes to noise reduction?

please help
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  #22  
Old 09-02-2014, 08:43 PM
raymo
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Hi again Jo, beautiful work, but I am curious as to why you used f/8.
Unless the lens has problems, you could have used f/4 and ISO 400,
or alternatively f/2.8 and ISO 200, or f/4 1600 and 40 sec subs,
or f/2.8 and 20sec subs. Having said all that, you'll probably shoot me
down in flames.
Here's to many more fine images.
raymo
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  #23  
Old 09-02-2014, 09:01 PM
dutch2 (Ingrid)
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Gorgeous shot, beautiful detail.
Well done.
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  #24  
Old 10-02-2014, 05:57 PM
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nebulosity. (Jo)
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Quote:
Originally Posted by Irish stargazer View Post
That's really nice.
I find with my 50mm lens that the skyglow washes out all the detail in the nebulosity. I must be doing something wrong. A wider lens helps a bit.
Well done!
I have pretty dark skies that help out a lot

Quote:
Originally Posted by JZ View Post
Hi Jo, very nice shot! Lots of interesting objects there. Just shows what you can do with a std camera lens and lots of time. How come a Nikon lens on a Canon camera? Obviously it comes to focus OK. Is it just a simple lens adapter. Some like my Minolta-Eos adapter will not focus to infinity.
Cheers, Ross...
I used the Nikon lens as its the only one I have, it comes to focus perfectly

Quote:
Originally Posted by adi View Post
thats nice capture... would you please explain your setup? i have Nikon DSLR and i am buying 8" Dob next week. would you please guide me what all i need to capture such images? i red so many places that i need Canon for low such photos as Nikons are bad when it comes to noise reduction?

please help
My set up is: tracking mount, cooled modified dslr, 85mm camera lens.

Your Nikon should be fine, all you need is a tracking mount and some dark skies.

Quote:
Originally Posted by raymo View Post
Hi again Jo, beautiful work, but I am curious as to why you used f/8.
Unless the lens has problems, you could have used f/4 and ISO 400,
or alternatively f/2.8 and ISO 200, or f/4 1600 and 40 sec subs,
or f/2.8 and 20sec subs. Having said all that, you'll probably shoot me
down in flames.
Here's to many more fine images.
raymo
Good question, because I removed the IR/UV filter from the camera and didn't replace it with anything, I would pick up a much larger part of the spectrum than the lens could acutely focus, but by stopping it down to F8 it was able to get a sharper focus.

Quote:
Originally Posted by dutch2 View Post
Gorgeous shot, beautiful detail.
Well done.
Thanks!
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