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Thread: Undecided....Dob 6" or 8"???

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    Default Undecided....Dob 6" or 8"???



    Hi everyone,

    That's my first question on the forum so please be gentle with me

    I'm about to buy my first ever telescope and I'm torn between Skywatcher 6" dob and 8"....

    Cons of the 6" model:
    -Lighter and easier to handle/carry, etc.
    -100 euros cheaper, money which i could invest on a barlow, EPs, etc.
    -Seems more reasonable for a first telescope. Could always sell it if I get tired of stargazing or sell it and buy a better one if I fall in love with it.

    Cons of the 8" model:
    -Obviously aperture
    -Better viewfinder and focuser (10x50 and crayford compared to 6x30 and rack and pinion)

    I'm leaning towards the 6 inches. I just feel the 8" is too much for an absolute beginner like me.

    Where could I find photos of the view from both of these models? How does a view from the 6" with a barlow stand compared to a view from the 8"?

    Thanks for the time!
    Clear skies!

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    Default Re: Undecided....Dob 6" or 8"???

    welcome - getting photos of view from dobs esp. small dobs will be very difficult - and if you could swing it i would highly recommend an 8 inch dob - you won't regret it

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    Default Re: Undecided....Dob 6" or 8"???

    Not sure I know how to get you an image of the views from both Dobs.

    Frankly, either scope will be good. I think the 6 inch is optically better (because of the slower optics) but the light-gathering advantage of the 8 inch is significant.

    If you have the opportunity, however, go to a few star parties with a local astronomy club before you buy. You will learn so much about what you need and want - and will make a more informed purchase.
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    Default Re: Undecided....Dob 6" or 8"???

    I started with an 8 inch Dob and have no regrets. The views through both the 6 and 8 will be very similar. However the 8 will be a little better due to the extra light getting to the mirror. As for portability I dont think there is much in it.
    Good luck with what ever you choose.

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    Default Re: Undecided....Dob 6" or 8"???

    NEVER EVER look at photos taken with ANY SCOPE to determine which one has the "better" views... all photos show is who has the better camera better the better set up for AP and is a better photographer the scope itself is not all that important ...

    My fort real semi serious scope was a 114 mm (4.5 inches) and it was big enough to get me hooked big time in this hobby so a 6 honestly is big enough to at least give you an idea of what astronomy is all about... No matter what you buy DO NOT buy extra eyepieces or barlows until you have used the scope 4 or 5 times .. visual astronomy is all about gathering as much light and getting that light back to your eyeballs NOT about magnification...so beware most beginners jump right into buying high powered lenses only to find out later that most of us use our medium and especially our lower powered eyepieces much more then the high powered ones...

    Bob G.
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    Default Re: Undecided....Dob 6" or 8"???

    Hi Alex
    TBH if I were to start out in this hobby again I would buy the 6" skyliner.
    Like Bob ^^^ I started with a 4.5" newt so a 6" would be ample. If you like astronomy there's plenty of time for big scopes, the sky isn't going anywhere soon.
    Also when the inevitable upgrade is wanted your choice is wider.
    Steve

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    Default Re: Undecided....Dob 6" or 8"???

    Listen to Bob - he's right! I almost bought a 6" Dob but went for the 8" and have never regretted it. I'm 60 something and I have no problems taking out my Dob and I keep it in our basement!

    Good luck!

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    Default Re: Undecided....Dob 6" or 8"???

    I don't have a DOB "yet"...but enjoying the 2 scopes I use I can say I am interested (and eager) to own one in the near future. I have thought of it like owning different cars...some doing what others cannot. Cost is always a consideration so your budget will dictate what you can afford. It's fun to learn the differences of "types" of scopes available and since learning is part of the hobby...I am enjoying using the scopes I have...BUT...I want to learn more and hope to after purchasing a 10" DOB. It's all about "your needs"...and wants I suppose...so ask questions and study the answers and advice given here. These people know what they are talking about!

    Happy hunting!
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    Default Re: Undecided....Dob 6" or 8"???

    Listen to what people are telling you Alex, as these are the voices of experience. Never think that an 8 inch is too much scope for a beginner. There is no difference between how you use the 6 inch vs the 8 inch. They are both of the same design, though one has slightly slower optics. As already said, the 2 inch bump in aperture will not make a significant difference, but it will add some brightness to the views and give you better resolution. An object that is quite dim in the 6 inch will be a little easier to make out in the 8 inch. I will always recommend to anyone to get the most aperture they can physically handle and afford. An 8 inch dob is not too much for the vast majority to handle, unless they have serious health concerns and can't lift much. If Abb can move it easily I know you can! (sorry Abb! )
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    Default Re: Undecided....Dob 6" or 8"???

    I thought about getting myself an 8" but for the price difference a saw with a 10" I figured I might as well get a bigger one following what I read in many forums that aperture is king. Today, a little over 7 months after my purchase and after watching several DSOs throught my scope I stand behind my decision. So my advice to you is get the biggest aperture you can afford. I agree with OleCuss, if possible go to a star party and compare before you purchase and by all means listen to Bob and don't jump into the eyepiece buying frenzy. Use your scope a few times and then get back here and check for different threads that offer quite a number of advices in terms of eyepieces and how to better decide on them or just ask yourself the question based on the scope you got, you will find that there's a ton of information that will be poured by all the knowledgable people in here.

    Best of lucks with your purchase, whichever one you get will open the universe for you anyway so i'm sure you will enjoy it.

    Cheers
    Tonin
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