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Thread: F/8.33 telescope a complete waste of money (for me)?

  1. #21
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    Default Re: F/8.33 telescope a complete waste of money (for me)?



    Yes, the magic is definitely alllllllllll in the "wallet" However, even if your wallet is small, the 120 XLT with a CG4 won't disappoint you Alec
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  3. #22
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Quote Originally Posted by Bobble View Post
    I really like the way you think!
    Listen to him Alec!! *L*

    Bob
    I'll second that!

    ... but I notice that cbrucker has a TSA 120... why not go the whole hog Alex?

    ... and I love the idea of a twin mount so you can run two scopes at a time (we do have two eyes after all! ). You can get a saddle to do this with an EQ mount as well!

    Seriously though (sort of), the original question was about an f8.3 refractor. Personally I don't think you can go wrong with that FL- it will minimise CA and edge distortion pretty much for an achromat, but still gives you a nice FOV.

    A great problem to have!
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Cheers Bobble.

    Dean- I have it because I had what I now consider a stupid rule regarding the number of scopes I own at any one time. That being only 3 non-specialized (solar as an example) scopes. I was sitting at 4 at the time when I *HAD* an ES 102mm ED and a ES 127mm ED so traded them in with a small bit of cash for the Tak to get back down to 3. It was the biggest mistake of my telescope history. The Tak is a wonderful instrument with fantastic glass but not $2,500 more wonderful than the ES 127mm.

    And getting the bloody thing to be able to do AP is an exercise in opening the wallet and throwing money out. IF you go all Tak you spend $$85 on the CA-35 adapter, then another $85 on a wide mouth T-Adapter, then another $160 on something I can't remember. That is just to image at f/7.5. If you want to go to f/5.6 then it's $800 for a flattener and reducer. Being Irish (remember copper wire was invented by two Irishmen fighting over a penny ) that just rankled me. I was *FINALLY* able to get focus with my SBIG last night by using an OPT 55mm T-Ring adapter, both Tak extension tubes, and the 3" to 2" compression ring. But the image train was a good 16cm/6" long! Not including the CCD! Just not worth it.

    Had I to do over again I would have kept the 102mm and 127mm as well as the the Comet Hunter for visual then picked up a tricked out (robo focuser, coma corrector, etc) imaging Newt in the 200mm/8" size for wide field fast imaging, the Edge 800 for small DSO, and the Edge 1100 for planetary and extremely deep DSO imaging as well as light bucket visual.

    Ergo Alec my advise stands. Spend the extra money now on a refractor that will stay with you for a lifetime. That 127mm ED is a scope like that. Don't buy into the hype on the Tak's or the Televue's. They are hands down fantastic scopes with excellent optics and the like but the 127mm ED ES does a Yeoman's job of it and is 1/2 the price. After all Alec you can't take it (cash) with you when you die so why not enjoy it while you are here?
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Yeah, the Chinese-made scopes are pushing the Japanese etc. now- and are becoming great value for money with better quality control.

    Tak extras have always come at a premium- maybe that means they pay their employees a living wage?!

    At least having spent the extra money you will hopefully have something that delivers great images and you can keep forever...

    I got my Tak because I was fed up with ED "apos" by otherwise reputable brands that simply weren't up to scratch for visual work, especially at higher power. At that time the Aussie $ was high, and the price difference wasn't too bad. Also, there weren't many choices in Aus- and I find it problematic spending a lot of money on "sight unseen" optics from overseas.

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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    If I had to do mine over again I doubt if anything would change because I'm quite happy with my selection I'm not into AP so I don't need an APO. As for a Tak, well, the bragging rights are neat....perhaps when I win a super lottery
    Makuser likes this.
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Quote Originally Posted by cbrucker View Post
    Alec- I have bad news for you. That F/8 refactor isn't what you need. What you really need is a AR 127mm from Explore Scientific Europe.

    Aaaaaaaarrgggghhhh!!!



    Alec.
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Quote Originally Posted by jerryTheC View Post
    I agree with AbbN - the ideal number of scopes is at least n+1, where n is the number you have at the moment .
    Thanks guys for all your input.

    Jerry's n+1 formula is as brilliant as it is dangerous. I have it in mind for the inevitable "discussion" with my other half to modify the formula to .......

    The ideal number of pairs of shoes that a woman should own = n + 2.

    Wish me luck guys.

    Alec.
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Quote Originally Posted by Alec in France View Post
    Thanks guys for all your input.

    Jerry's n+1 formula is as brilliant as it is dangerous. I have it in mind for the inevitable "discussion" with my other half to modify the formula to .......

    The ideal number of pairs of shoes that a woman should own = n + 2.

    Wish me luck guys.

    Alec.
    That formula for women's shoes also applies to purses
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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Hi Alec and all. What a great thread this is for us refractor heads. Remember, that no one scope does everything perfectly. Wow, Alec uses the term "cluster buster" and grab and go. I have the Celestron XLT150R refractor. It is the easiest scope that I own to set up and use. Shortly after I bought it in 2009, I sold my Orion 120ST scope. But, the fellow across town that I sold it to, had lost his job with the recent down scaling at NASA, and I bought it back last spring. So, now I have two fast focal ratio refractor telescopes again. They both have the GSO dual speed Crayford focuser and (thanks to Abbn) has the 6" has the 16" extension. This makes the scope work like a dream machine. Thanks to jerryTheC for the reference to the Explore Scientific 6" Mak-Newt telescope. This scope is like having a 6" refractor with no chromatic aberration, and is sharp out to the edges, because of the corrector plate, for a fraction of the money. However, there is a large central obstruction. Also, I knew that I had seen this formula before on the forum last spring, but I couldn't remember who to attribute it too: "the ideal number of scopes is at least n+1, where n is the number you have at the moment" The Celestron 6" Advanced f/8 refractor might also be a great choice too. It comes with a goto mount, an the longer focal length might be better for lunar and planetary viewing.
    An ED or APO refractor scope is fine too Alec. I know that you are not into astrophotography right now, but, never say never. As for me I love my achromatic refractors. I like the no central obstruction, high contrast wide fields, and the crisp views. Also, a good tip to cut down on the CA for low money, is the use of a Wratten #11 yellow-green filter. Now, where is JG when you need his input on this vote? He has the SkyWatcher version of my 150 Celestron refractor, and he loves it. Well Alec, I hope this helps, and we all enjoyed spending your money. Thanks for the wonderful thread Alec, and best wishes on your telescope decision.
    - Marshall

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    Default Re: F/8.33 telescope a complete waste of money (for me)?

    Hello Alec,

    I agree with RichM63. You only live once!! Twenty years from now, are you gonna be eating "Beanie Weenie" every meal, because you bought the scope? If the answer is no, go for it!!

    That's my philosophy, for what it's worth.

    Lon ...
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