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  1. #1
    al.witten's Avatar
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    Default Buy a Orion XT10g or a XT12g??



    I currently have a Meade ETX 125 and have decided to upgrade to one of the new Orion Go-To dobs, either the XT10g or the XT12g. I recognize that the main advantage will be the Tracking capability, although the Go-To is nice. The 10" will be 35 pounds lighter than the 12" and thus easier to move from the house outside 60 feet. (67 pounds vs 102 pounds). The 10g is also $500 less than the 12g. The 12" will provide 56% more light than the 10". Both the 10" and the 12" will be tremendous improvements over the ETX 125. I will be using both 2" Q70'x and 5000 series QX Meade eyepieces and 1.25 TMB planetary's etc which are decent mid quality eyepieces.

    The only advantage that I can see going with the 12" over the 10" is the additional light capture. (56%)
    1. Is this a sufficient advantage that will be recognizable??
    2. Are there any other advantages of the 12g over the 10g??
    3. What experiences with 10" vs 12" dobs would you like to share?

    Thank you

  2. #2
    WWPierre's Avatar
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    Default

    Hi Al, welcome to the forum.

    I would get the 10". My 16" dob shows brighter images than my 8" short newt, but not startlingly so. 10" seems to be the sweet spot in area per dollar. They say aperture rules, but the law of diminishing returns kicks in heavily after 10". Personally, I value tracking ability, portability, and mount stability more. My 5" scopes get the most use.
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  4. #3
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    Default

    I'd lean towards the 10 inch myself...

    Lets fact it the darn hing is a HUGE jump up in aperture from what you are currently using....so huge that I would advise you not to wear any socks when you give it first light because it will knock the socks off so why waste time putting them on...

    These is a difference between 10 and 12 BUT honestly...at least in the SCT type scopes that I prefer not really enough to spend money on... especially if you have to lug the big scope outside to use it...

    Slightly more brightness and slightly better resolution but NOT $500.00 better in my opinion...

    Either way ..whichever you choice...you will end up with tremendous views...

    Bob G
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  6. #4
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    Default

    Thank you to WWPierre and Bob G for their supportive advice. So far that is how I view the differences between the 10g and 12g dobs. Everyone please feel free to weight in with your feelings and impressions.

    Also, from forums it appears that the two eyepieces being supplied by Orion with both dobs are pretty poor. In addition, I had already purchased the 12 mm illuminated cross hair eyepiece (one of the two supplied) last year for my ETX 125. I'd also like to upgrade the finder to a 9x50 right angle (I've got a green laser & mount and will most likely also add a Telrad). Therefore, what I need is for Orion to offer a "Build Your Own" option, and then I'll purchase the 10g or 12g. (I've expressed this to their Customer Service to no avail) If others also feel that way, please contact Orion and ask them to provide us a "Build Your Own" option for their Go-To Dobs. This would be a win-win for all, as I would also then purchase additional eyepieces at the time of purchase, and I believe that many others would also do likewise.

    Al W.

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  8. #5
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    Default

    Did Orion really just start offering the build your own option since this post? Way to go, Al! I've been looking at ordering the XT10i myself, and was pretty much decided on using the build your own option! So, Thank you for Paving the way. : - )

    I'm looking at getting the 2 speed 2" crawford focuser, but not sure if the low-profile model is worth the extra 80 bucks, over the non low profile version, which is already an extra $56. I was leaning towards the more expensive because it sounds like it has more focus travel, which should mean a wider range of eye-pieces that can work, right?

    I also thought I'd try the Easy Finder II Deluxe model, hoping that the extra $20 is a decent upgrade to the standard model as it seems like quite a few folks grumble about the standard model.

    Did Orion get the Build yYour Own Scope in time for you to take advantage of it?

  9. #6
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    Default

    What's the focal length of the 12"? - it might mean you're on a ladder for part of the evening!
    10" sounds mighty fine to me.
    I think I'd accept a 14" or 16" SCT in an observatory, but the dob needs to be mobile and it's heavy when it gets to 12"!
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  11. #7
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    Default

    Go with the 10 inch-- not much visual difference between the 10 and the 12 --
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    Default

    I have the 12" XT12G myself. You don't need a step ladder unless you're 8 years old and the scope is aimed at the zenith.

    I guess the biggest concern for you will be the price difference. I was upgrading from a 6" so wanted to go no less than 12 inches. I'm sure you'd be happy with the 10" but from what I've read, 12" is considered by many to be the optimum aperture.

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    Default

    thanks everyone,I just got alot of info for my next scope ,the 12"

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    Default

    Great choice! You will love that scope!
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