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Thread: 10 inch verse 12 inch Dobsonian

  1. #1
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    Question 10 inch verse 12 inch Dobsonian



    I am wondering if the price of getting a 12 inch verse a 10 inch Dobsonian and the larger size of the tube and the extra weight is worth the better image? The price seems to be $200.00 or more going from 10 to 12 inches. I am hoping to get some feedback on these questions so I can get a better idea on what size to chose. Thanks.

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    Default Re: 10 inch verse 12 inch Dobsonian

    Everyone will have different opinions on this question, so I'll offer my admittedly biased opinion and you can weigh it against the others you might get.

    IF you already owned a 10" dob I would say it is not worth the extra cost. There isa not that uch different when you only go up on size in telescopes.

    IF you live in an area where transportation, weight, and set up are an issue I would say it might not be worth the extra cost because it might be too cumbersome and you wouldn't find yourself using it as often.

    Outside of those two qualifying conditions I will say YES. For a visual scope like a dob I will always opt for the largest aperture I can afford and easily set up. I have a 10" dob. I would not consider selling it to purchase a 12". If I did not currewntly own a dob, however, and were looking to purchase one, I would go with the 12".
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    Default Re: 10 inch verse 12 inch Dobsonian

    I agree with Rob. If you don't mind the extra weight and more expense then go with the 12". I've got a ten inch Dob and selected it mainly so that I could get something that was big and also semi-portable. I can easily move my scope around so that means I can use it frequently. The view with the 10" is pretty good so when I upgrade eventually it will be to a 16 inch mounted on a dolly. Good luck with your choice, it's a bit of a trade-off between size and portability so it just depends on what's more important to you.
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    Default Re: 10 inch verse 12 inch Dobsonian

    I think the major factor is going to be weight and portability, just as the others said. Aperture is king, but you should decided if the two extra inches of aperture is worth the extra cost and added weight. If you can, compare the specifications between the 10" and 12". Look at the weight difference, and ask yourself if your willing to move around the heavier scope on a nightly basis. If the answer is yes, then by all means get the larger Dob. If not, a trade off that only costs 2" inches of aperture seems reasonable. As many have said, the best scope is the one you use the most. Good luck to you and happy holidays.
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    Default Re: 10 inch verse 12 inch Dobsonian

    1st is aperture... bigger is always better. If your looking Jupiter you won't be able to tell the difference. The difference will be obvious when your trying to resolve an star cluster or a galaxy. M51 is a good example. The detail will astound you.
    The second consideration is portability. Both are big and heavy. Truss tubes will break down and stow away nicely. My 12 inch sky watcher collapsed down takes up less space in the back seat than my 8 inch solid tube. I have seen a 12 inch light bridge materialize from the back of a little hatchback. A 12 inch solid tub is monstrous, a 10 solid is manageable. Still, I recommend a truss tube in either 10 or 12.

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    Default Re: 10 inch verse 12 inch Dobsonian

    Only you can make up your mind as others have noted...
    I honestly am not a dob guy (they are just not my thing although they do offer the best bang for anyones money)

    Choice between an 8 and a 10 is tough enough as both will normally fit in a "normal" car so the portability issue is usually not a factor.. The choice between a 10 and a 12 is also tough because the 12 is not going to show you any major difference then the 10..BUT the portability factor is now a major issue.....

    I am NOT a fan of collapsible or truss tube Dobs because frankly I do not want to have to play with an erector set and put one together then have to collimate it every single time I want to use the scope.. Nor do I want to dis assemble it when finished for the night...

    Collapsible 12 inch and larger Dobs are fine if you can store it fully assembled and just "wheel it out the door to use at home BUT need too travel even to a local star party a few times a year...where assembly and collimation should not be all that much of a job.....

    A solid tube 10 is what I would buy.. hands down... I'm lazy and when I have a few minutes to observe then I can do so without any hassle..and I can easily travel the 30 miles or so it is to my clubs star field..

    Bob G.
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    Default Re: 10 inch verse 12 inch Dobsonian

    Well just reading these and other forums, it appears the 12" view of over the 10" view is a major difference, not minor. But the weight of the tube itself, for example possibly 48 lbs vs 35 pounds, and if that prevent you from using it often then could be a factor.

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    Default Re: 10 inch verse 12 inch Dobsonian

    Please pay attention to posting dates and refrain from necroposting.
    This thread has not been replied to in over 5 years.
    Time to put it back to bed.
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