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Thread: Sky-Watcher 8" collapsible dobsonian

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    Default Sky-Watcher 8" collapsible dobsonian



    Amazon has this telescope on their site for $379.00 and the classic 8" dob for about $355.00. The collapsible scope would really be handy but I was hoping to get some opinions on it. Is light pollution more of a problem with a truss style scope than with a solid tube. It seems like it would be but I have never looked through any other scope than the one I own. Also, would there be any other disadvantages to this scope. Any opinions would be greatly appreciated.
    Thanks a lot,
    Gene
    Orion XT 4.5, Orion 10x50 binoculars, Skywatcher 8" Dobsonian

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    Default Re: Sky-Watcher 8" collapsible dobsonian

    If you put a light shroud around the collapsible dob you won't have any issues. You will have to collimate the collapsible every time you use it, but thats no big deal. I still prefer solid tubes at 8".
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    Default Re: Sky-Watcher 8" collapsible dobsonian

    There's no way I would consider an 8" collapsible when the 8" solid tube is so easy to transport. I didn't even consider it for my 12" but I can see where many people would at that size. Maybe for a 14" or larger but not for an 8".

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    Default Re: Sky-Watcher 8" collapsible dobsonian

    Hey Gene. Is that your truck in the avatar? Love it.
    Mark
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    Default Re: Sky-Watcher 8" collapsible dobsonian

    I would never buy a Truss style dob unless it was 12 or 14 inches or larger...

    You have to assemble the darn thing before you use it
    You have to collimated it every time you use it
    Then you have to take it apart after you are done for the night ....

    To be honest assembling is no big deal and neither is Collimating BUT when I'm tired especially when I'm tired and cold I really dislike having to take it apart ....

    Just my opinion... and I admit to being lazy

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    Default Re: Sky-Watcher 8" collapsible dobsonian

    Quote Originally Posted by Pitter View Post
    Hey Gene. Is that your truck in the avatar? Love it.
    Yes it is. I sometimes wish that I had all of the modern conveniences of a new truck but it is nice knowing that I could put a new transmission in it beside the road if I needed to. My wife has a newer model Ford Focus and it took me most of a day just to put a new alternator on it.
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    Default Re: Sky-Watcher 8" collapsible dobsonian

    Having a Skywatcher flextube I can add a few things perhaps. The flextube does not need 'assembling' other than sliding the secondary mirror cage up (takes 30 seconds). Astrozap make a great shroud you can leave permanently on the scope. I only ever need to tweak my collimation as I did when I had my 8" solid tube (the alignment of mirrors varies due to moving the scope around, not from the reliable alignment of the flextube system). An 8" solid tube isn't too heavy to carry but it's length can be a problem if you have a small car and want to put it sideways in a boot (trunk). You'd still probably have to put the base in a back seat but it leaves you with room for an extra passenger or two. A collapsed tube is less awkward to carry but probably heavier due to the three struts the upper cage slides on.

    Having said all that if I had a big car I'd probably opt for the solid tube: no shroud to buy or make, not that much more difficult to carry.

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    Default Re: Sky-Watcher 8" collapsible dobsonian

    Thanks for all the advice. It looks like I probably need to wait a while before I buy an 8" scope anyway. I will probably be able to find a good deal on a solid tube whenever I am ready to get one. I thought the collapsible scope was a really good deal but I will just wait until I get some bills paid and keep using my old xt4.5 for now. The longer I use it, the better the 8" will seem when I get it anyway.
    Thanks again,
    Gene
    Orion XT 4.5, Orion 10x50 binoculars, Skywatcher 8" Dobsonian

 

 

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