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Your favorite aperture and design?

Discussion in 'Telescopes and Mounts' started by BillP, Oct 21, 2015.

Your favorite aperture and design?

Started by BillP on Oct 21, 2015 at 4:14 PM

43 Replies 2119 Views 3 Likes

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  1. aeajr

    aeajr Well-Known Member

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    Plenty of good options under $300. Not sure exactly what you are looking for but I offer these for your consideration and research.

    Meade Instruments Infinity 102 AZ Refractor Telescope - About 14 pounds
    Includes 3 eyepieces and a 2X barlow and slow motion controls. Gets many great reviews
    https://www.amazon.com/Meade-Instruments-Infinity-Refractor-Telescope/dp/B00LY8JWAQ/ref=sr_1_1?ie=UTF8&qid=1480710856&sr=8-1&keywords=Meade+Instruments+209006+Infinity+102+AZ+Refractor

    Sky-Watcher Virtuoso 90mm Maksutov-Cassegrain Telescope – tabletop Tracking
    Includes 2 eyepieces, finder scope and bracket to allow a camera to be attached to the mount. Once you have centered the target you hit a button and this scope will track it for you.
    https://www.telescopesplus.com/products/sky-watcher-virtuoso-90mm-maksutov-cassegrain-telescope
    Video
    https://www.youtube.com/watch?v=xbEKhFiRjRM


    Celestron Omni XLT 102mm AltAz refractor - all up around 14 pounds - $260
    Includes a 25 mm eyepiece, Red dot finder, slow motion controls, correct image focuser for day or night use
    You would want to add a second eyepiece, perhaps a 10 mm, and a 2X barlow
    https://www.amazon.com/Celestron-22150-Omni-102mm-Refractor/dp/B014EQ1LB2/ref=sr_1_1?ie=UTF8&qid=1479916061&sr=8-1&keywords=celestron+102+refractor+telescope
    Video
    https://www.youtube.com/watch?v=2oiPcZy2SQc


    Orion StarBlast 114mm AutoTracker Table top tracking reflector telescope
    Manual version received good review in December 2015 Sky and Telescope
    Includes 2 eyepieces, finder scope and bracket to allow a camera to be attached to the mount. Once you have centered the target you hit a button and this scope will track it for you.
    http://www.telescope.com/Telescopes/Reflector-Telescopes/Reflector-Telescopes-for-Beginners/Orion-StarBlast-114mm-AutoTracker-Reflector-Telescope/pc/1/c/11/sc/339/p/102786.uts?refineByCategoryId=339
    Video
    https://www.youtube.com/watch?v=LJLWCY92tQo


    Orion SkyQuest XT4.5 Classic Dobsonian Telescope - 18 pounds
    4.5”/114 mm Includes 2 eyepieces, finder scope and other accessories. The mount sits on the floor and is VERY stable.
    http://www.telescope.com/Telescopes/Dobsonian-Telescopes/Dobsonian-Telescopes-with-Free-Shipping/Orion-SkyQuest-XT45-Classic-Dobsonian-Telescope/pc/1/c/12/sc/398/p/102009.uts?refineByCategoryId=398
    Video
    https://www.youtube.com/watch?v=-SAnFX8IKPY


    Orion XT6 Classic Dobsonian Telescope Starter kit including barlow, moon map, observers guide, planisphere, red flashlight, 25 mm eyepiece - about 35 pounds but can be moved in 2 pieces.
    6”/150 mm
    http://www.telescope.com/Telescopes...12/sc/398/p/116304.uts?refineByCategoryId=398
    Video
    https://www.youtube.com/watch?v=zonuiO7h4gs
     
    Dave In Vermont likes this.
  2. Pleiades

    Pleiades Active Member

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    Thanks Aeajr. I'm leaning hard into a Celestron Omni 102, or the ES equivalent- First Light.
     
  3. aeajr

    aeajr Well-Known Member

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    It should make a nice complement to your current scope.

    That is a smaller aperture F13 as compared to this larger aperture F6.5. It will give you better lower power and wider views for DSOs.

    Add a barlow and it should do a nice job of higher powers than your 60 mm can go. You may get a little more CA. I have an F5 80 mm which shows CA on planets but my brain filters it out. I don't even notice it.

    I have 3 scopes and they are all very different. I like that. Each has its strengths and I take advantage of that.

    Your smileage may vary.
     
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  4. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Maksutov-Cassegrains were a longtime unknown in the Untied Snakes, with but one lone exception - can you guess what these were? The name of the one outfit that had been selling Maks in the US?

    If you can, you've been paying too much of attention! Positively un-American! :D

    <drum-roll>

    The QUESTAR -

    Not really a telescope you'd take out in the fields in your backpack for a 10 mile hike into a dark-sky wilderness. More at home on the office-desk of a CEO of some billionaire of Wall Street:


    aa__44961.jpg


    The Maksutov originated in the former Soviet Union in 1941 during World War II. Then with the Cold War raging on and the ludicrous philosophy of "Winning Hearts and Minds" - the last thing on the minds of investors was marketing a product and explaining the wonders thereof - and risk a visit from the John Birch Society:




    It wasn't until the dissolution of the Soviet Union in 1991 that a Maksutov would, in earnest, be invited into consideration. Phew! Good thing that - at least for us astronomers. These scopes have optics that can produce contrast that will give the apochromatic-refractor crowd a run for their money!

    So my answer to "Refractor or Maksutov?" - toss a coin. Well, a few other factors to juggle: Money? Central-Obstruction? F.O.V? A 'Learning-Curve' is required. But if you're looking for a telescope that you'd primarily use for the planets and other Solar-System denizens where a wide Field-Of-View isn't needed - as well as more confined DSO's like globular-clusters & ring nebulae - and intend to use high magnifications, a Mak is calling you.

    Have Fun Out There,

    Dave
     
    Last edited: Sep 13, 2017 at 12:19 PM
    jgroub likes this.

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