Site Sponsors
Results 1 to 11 of 11

Thread: Orion Nebula

  1. #1
    olyinaz
    Guest

    Orion Nebula

    Captured with the G1 on a Celestron 11" telescope using a Hyperstar lens (which turns the telescope into a 560mm f/2 optic mathematically but it's stopped down a bit by the central obstruction, namely the camera, up front). 25sec exposure at 100iso.





    Cheers,
    Oly

  2. #2
    Senior Member Brian Mosley's Avatar
    Join Date
    Jan 2008
    Posts
    2,394
    Post Thanks / Like
    Images
    17

    Re: Orion Nebula

    Wow, incredible to think this was taken from the surface of the earth! don't you suffer from light polution? and with longer exposures, how do you remove the effects of movement of the earth?

    Really fascinating stuff, but I feel that I'd have to move way into the country to escape the light polution here.

    Thanks for sharing

    Brian

  3. #3
    Lupo
    Guest

    Re: Orion Nebula

    Quote Originally Posted by olyinaz View Post
    Captured with the G1 on a Celestron 11" telescope using a Hyperstar lens (which turns the telescope into a 560mm f/2 optic mathematically but it's stopped down a bit by the central obstruction, namely the camera, up front). 25sec exposure at 100iso.


    http://www.pbase.com/olyinaz/image/1...8/original.jpg


    Cheers,
    Oly
    Crazy
    really super quality

  4. #4
    Senior Member
    Join Date
    Jan 2009
    Posts
    281
    Post Thanks / Like

    Re: Orion Nebula

    Quote Originally Posted by olyinaz View Post
    Captured with the G1 on a Celestron 11" telescope using a Hyperstar lens (which turns the telescope into a 560mm f/2 optic mathematically but it's stopped down a bit by the central obstruction, namely the camera, up front). 25sec exposure at 100iso.





    Cheers,
    Oly
    That is very impressive for a single 25 second exposure, low noise. And good tracking - which mount is it?

    Now you just need to remove the G1's IR filter to capture the H-alpha,!

  5. #5
    Senior Member Robert Campbell's Avatar
    Join Date
    Dec 2007
    Location
    Norn Iron
    Posts
    1,099
    Post Thanks / Like
    Images
    1

    Re: Orion Nebula

    Superb!
    Sláinte

    Robert.

  6. #6
    olyinaz
    Guest

    Re: Orion Nebula

    Thanks guys!

    Brian: I use a telescope mount that rotates with the Earth thus removing that item from issue. Even so I struggle with more than 30 sec. exposures because my mount isn't accurate enough to prevent the stars starting to elongate into ovals (which looks terrible - this is called mount error and correcting for it requires more gear that I've yet to buy). And Brian, don't despair due to your location - I've seen absolutely stunning Hyperstar images right out of Manhattan NYC that were taken with the use of filters that block the wavelengths of light noise pollution. Remember, it doesn't matter what you can see, it only matters what the chip can see through the filters with 30 sec. or more of exposure!

    GDI: You said it bro! I think that the G1 is an absolute natural for modifying for astro imaging. I really hope that someone offers that service on this camera because if they do I'll likely have it done and then replace this G1 with a G1HD or perhaps whatever Olympus comes out with.

    Thanks again all. I'll post more as I'm able (I caught Bodes and the Cigar last night as well) but I've got to run and the processing is just horribly time consuming on these dang things.

    Best,
    Oly

  7. #7
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: Orion Nebula

    Oly,

    I am in awe... Seriously, these are among the very best astral captures I have ever seen.
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  8. #8
    olyinaz
    Guest

    Re: Orion Nebula

    Thanks very much Jack.

    Best,
    Oly

  9. #9
    Member
    Join Date
    Dec 2007
    Location
    Central Texas
    Posts
    182
    Post Thanks / Like
    Images
    1

    Re: Orion Nebula

    Great shots. Andromeda too. I have a 9.25 inch scope I need to try this on. Encouraging to see what is possible. Frank

  10. #10
    Senior Member
    Join Date
    Apr 2008
    Posts
    1,446
    Post Thanks / Like

    Re: Orion Nebula

    Wow with a 25 second exposure, and the stars have not shifted, is the telescope on some sort of calibrated motor?

    Mazor

  11. #11
    olyinaz
    Guest

    Re: Orion Nebula

    Mazor: Yes, I have the telescope on an equatorial mount such that it rotates with the earth which keeps the stars from shifting. This is actually pretty easy to accomplish with what's known as a "clock drive" for the mount.

    Best,
    Oly

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •