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  1. #1
    MisterNeutral's Avatar
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    Default Attach a laptop to an eyepiece?



    Hey All,

    Bit of a noob question, I know - but I'm curious. I'm looking into buying my very first telescope and I'm curious - is there a way to output eyepiece visuals to a laptop screen in high resolution on a consistent basis? I find most eyepieces uncomfortable and don't like to close one eye. My primary interest is astrophotography.

    Thanks!

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    Default

    Hi,

    Am starting to dabble in astrophotography too and use a Celestron NexImage webcam camera that attaches to the standard 1-1/4" diagonal where the eyepiece goes, just plug it in, it attaches to the laptop via the USB connector; run the included softawre and you'll be able to see on the computer screen whatever is in view on the scope. Here's an actual pic of the unit:



    The first/maiden moon shot that I took with it (using a 6" SCT scope):



    The pic above is just one frame of the video output from the NexImage file produced, it can be vastly improved by "stacking" images, but am still going to learn how to do that.
    The NexImage costs less than a hundred dollars (around $50 used).
    Here's a link of the product at Celestron:

    NexImage (item #93712) / Photo & visual accessories / Accessories / Products / Celestron.com

    Hope this helps.

    Best,

    Hernando
    Last edited by ibase; 03-31-2010 at 04:39 AM.

  3. #3
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    Default

    You have choices like the Celestron mentioned in previous message, Mallicam, webcams, Astrovid cam, etc.........they will show you more detail then the eye can see, webcams do not see most DSO objects though....These are just a few cams to name, price ranges vary.....I have older meade LPI that is still used or very old SAC-8 that does a wonderful job.......My DSLR can also show some good stuff in either live view or with short duration exposures........choices vary a bit according to what you want to see: planets, DSO,etc....Also what is your budget?

    If I had a choice right now I would pic the Mallicam or astrovid for my own setup and prefernences but these cost some extra money.....but are great tools especiallywhen presenting the sky to a group of people.

    Hope this helps!

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  4. #4
    MisterNeutral's Avatar
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    Default What great responses!!

    Wow! What great responses!



    I should have mentioned my budget. I'd like to spend about $600-$1000 on my camera (prefer to use it for other things, but I don't mind dropping a whole lot on a dedicated astronomy camera) and about $500 for the scope.

    The first option linked by ibase seems like a really good choice.

    But question - are there any good direct attach devices for digital SLRs? Or do you still have to get a macro lens or something and then position it next to the eyepiece?

    Also - on Eyepieces. Is there an eyepiece that is - how to say it - really ergonomic? To the point where you can just plant your face against the telescope, look, relax, and say "wow, nice!"

    Thanks, all!

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    Quote Originally Posted by DaltonSkyGazer View Post
    If I had a choice right now I would pic the Mallicam or astrovid for my own setup and prefernences but these cost some extra money.....but are great tools especiallywhen presenting the sky to a group of people.

    Hope this helps!
    I can see these being expensive - but the images they show are only moderate. I don't really see the advantage of video cameras in astrophotography. Why not just use a nice DSLR?

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    Quote Originally Posted by MisterNeutral View Post
    I can see these being expensive - but the images they show are only moderate. I don't really see the advantage of video cameras in astrophotography. Why not just use a nice DSLR?
    cause they cost like $800000

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    Quote Originally Posted by MisterNeutral View Post
    Wow! What great responses!
    But question - are there any good direct attach devices for digital SLRs? Or do you still have to get a macro lens or something and then position it next to the eyepiece?

    Also - on Eyepieces. Is there an eyepiece that is - how to say it - really ergonomic? To the point where you can just plant your face against the telescope, look, relax, and say "wow, nice!"

    Thanks, all!


    Will this do? It's the Baader Hyperion 8-24mm zoom eyepiece ($215).
    It attaches directly to the DSLR by using an adapter ring, then the other end goes into the diagonal of the telescope.

    Best,

    Hernando

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  9. #8
    MisterNeutral's Avatar
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    Will this do? It's the Baader Hyperion 8-24mm zoom eyepiece ($215).
    It attaches directly to the DSLR by using an adapter ring, then the other end goes into the diagonal of the telescope.

    Best,

    Hernando
    That is *exactly* what I am looking for! Oddly enough, I just bought that book. It seems to be the Astronomy Bible for beginners. I'm going to look into lens attachments like that. It looks perfect.

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    ibase's Avatar
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    Default

    Quote Originally Posted by MisterNeutral View Post
    That is *exactly* what I am looking for! Oddly enough, I just bought that book. It seems to be the Astronomy Bible for beginners. I'm going to look into lens attachments like that. It looks perfect.
    Here's the Hyperion zoom in it's native state:



    Taking out the top rubber cover, it looks like this:



    The ring beside the zoom is the HTA54/T2 Hyperion T-Adapter while the other one is the standard T ring adapter for the DSLR (Canon in this case).

    You're right, the book is a very good one, but a tad incomplete because it does not take up the Hyperion zoom!

    Best,

    Hernando

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    I just bought an 8" Dobsonian. I can post pictures as soon as I this post is approved.

    Despite everyone telling me Dobsonians don't take good pictures - I'm really impressed!

 

 
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