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Thread: The AP learning curve

  1. #31
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    Default Re: The AP learning curve



    Quote Originally Posted by Alec in France View Post
    I was going to look it up, but as I say, I'm NOT going down the AP route.
    Alec.
    Hi Alec. Well, you ended up with a beautiful M45, and a very nice M31. But, never say never about doing AP. To quote detective Charlie Chan; "Sometimes not know where path leads, until reaching destination". Thanks for sharing these captures with us Alec, and best wishes on finishing your Messier 110 award.
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    Default Re: The AP learning curve

    Quote Originally Posted by sxinias View Post
    Instead of using a T Ring adapter, you can directly screw the camera's T ring onto the focuser drawtube which provides a very secure connection.
    Be careful with this recommendation. With my ST80 and my Canon T3i, I was not able to get prime focus using just a Celestron T-ring, I needed to add the T adapter to get the focuser "long" enough to achieve prime focus (I'd imagine an extension tube could work as well though). It was just BARELY out of focus with the focus tube at max length.

    EDIT: I see that OP isn't using the ST80 like I had thought, I think I got a few threads mixed up in my mind.
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  3. #33
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    Default Re: The AP learning curve

    Alec, I noticed you have a zoom lens in your signature. I have a zoom lens that is from Smart Astronomy (generic EP, really) that was given to me by a friend moving out of state. I had been looking at EPs and saw some that you could thread a T-Ring to without using a T adapter and thought that might be a good investment. I looked closer at my zoom lens and carefully pulled off the eye relief to find that it was threaded! I grabbed my T-Ring and started to thread it onto the zoom EP....Tada! The T-Ring and the EP went together very nicely. I have not tried it yet with any of my scopes but I have to say that this opens a whole new world for me. I figured that you may want to carefully inspect your zoom EP as well!
    Let me re-iterate....I am not getting into AP!
    Umm, yeah....whatever.
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    you own, or its quality. Just get out under the night sky, and enjoy God's wondrous universe." --Thomas M. Back, 1957-2007
    >)))))*>

  4. #34
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    Default Re: The AP learning curve

    Quote Originally Posted by GrandPrixChris View Post
    I figured that you may want to carefully inspect your zoom EP as well!
    Let me re-iterate....I am not getting into AP!
    Umm, yeah....whatever.
    Chris,

    O yes, I have known for some while my zoom is threaded. I try not to think about it

    Its a clever ploy by makers of astro equipment to suck me in to the deep hole of spending money on things that attach to it.

    Alec.
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  5. #35
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    Default Re: The AP learning curve

    Id say your hooked too. It doesn't take much in my opinion. This is a super cool hobby with tons of satisfaction along with lots of frustration from my experience. I think Im finally getting the hang of some of the basics. Your going to have to get your mount properly polar aligned which seems really hard at first but once you have the drift alignment successful the first time, it doesn't seem that hard. After that, I think its mostly about getting long exposures and then the hard part is the processing of the image, but I am finding that the better the mount is aligned, the easier that gets (as far as getting them properly stacked). I am processing a series of 61 90 second exposures of Pleiades right now so hopefully I'll be able to post something in the next few hours.
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