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  1. #1
    ghswen's Avatar
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    Default M97 The Owl Nebula



    I'm still going through the learning curve. However I was able to get some great guiding last night and tried changing my ISO to 1600. I found this worked great and took 30 each 2 min images. Captured and pre-processed in Nebulosity, final process in PS elements.
    SW 254N / EQ5pro / Canon 350d / guided image binned 2x2.


    Gordon
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    Scopes:
    Explore Scientific ED80CF, Skywatcher 254N, Orion ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII coma corrector, Vixen 70mm refractor. Lunt LS35THa solar scope. Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary software: Cartes du Ciel, EQMOD, SGP, Nebulosity, Photoshop, StarTools V1.4
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  3. #2
    Cladinator's Avatar
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    Default

    Nice work, Gordon. That's a pretty sweet pic.
    -Nick

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  5. #3
    Dublin sky watch's Avatar
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    Default

    It looks spot on with the guiding and nice and sharp.
    Looks like your climbing that learning curve Gordon..
    Lovely shot sir..
    Declan.
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    ED80mm refractor.
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    star shoot solitaire autoguider.
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  7. #4
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    Default

    Nice capture Gordon! In my humble opinion, I'm thinking planetary nebulae are probably some of the hardest objects to capture, and you did a pretty dang good job of it. So I'd say your learning curve is spot on! Nice job!
    -C6-RGT refractor w/JMI EV-1r focuser &
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  9. #5
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    Default

    looks very nice Gordon.
    I'm glad somebody in California had clear skies
    You've got the DSLR under your control at ISO 1600.
    All I get is red skies at that setting here.
    I don't know how your able to balance out that light bucket of yours.
    do you have difficulty in different areas of the sky with balance and guiding?
    I'm already looking for a better mount.
    Ken

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  11. #6
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    Default

    Very nice capture. I'd say you're well on your way though the learning curve.
    Mike

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  13. #7
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    Default

    Quote Originally Posted by kwalker View Post
    I don't know how your able to balance out that light bucket of yours.
    do you have difficulty in different areas of the sky with balance and guiding?
    I'm already looking for a better mount.
    It's taken a lot of work! After about 2 months of owning it, I disassembled the mount, cleaned all of the old "black tar" out of it and used lithium based white grease. This alone made a huge difference. Balance is very critical when your slinging that much weight around so I have to be very careful if anything changes. Another thing that works very well is I use PHD and EQMOD to tweek the guiding settings. I have tried using one or the other and it never quite nails it down. So now I open both and adjust both the pulse guide setting in EQMOD and the tools on the graph in PHD. I found out last night if I watch the PHD graph and make adjustments to the pulse guiding in EQMOD the PHD graph will display the results pretty darn well.

    Since I'm on a pier the setup time is not to bad (about 5 mins to setup and another 5 to 10 to get the guiding dialed in.) Every time I move any significant distance (say 20 or so degrees) I normally will have to make a small adjustment to the guide settings. Only have to re-calibrate PHD if I move from NE to SE or vise versa. (I do all my imaging to the east as I have very bad skyglow to my west). I was going to do a screen shot of my guiding setups last night but got too lazy...
    Last edited by ghswen; 03-10-2011 at 07:49 PM.
    Gordon
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  15. #8
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    Default

    Looks great Gordon....Nice to see you have guiding worked out! CLear SKies!

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    Jeff Turner


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    The tracking is fine in 2 minutes .
    Standing up the mountain high,Looking down the window street,People all over the world (10X50 binocula

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