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About LinkBacks- 06-23-2011, 03:22 PM #1
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Why a Ladder for large Newtonion?
I have been reading some reviews on some larger scopes.. for a wish list.
Some talk about a step stool or a ladder.
Is there an reason not to just shorten the mount tripod legs? As long as the OTA and the counter weights clear the ground... when planning to view objects higher in the sky.. why extend the legs all the way?Ken H. 40+ years loving the night sky, sharing that with my 9yr old daughter
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CGEM &ZEQ25GT w/C9.25 "Linda Rosa" - w/Meade 10" SN F4 1000MM "BIG Linda!" * w/Astro Tech AT65EDQ "Tiny Rosa"
4SE & 6SE to be named * Meade Star Navigator 102 "Blue Bird" my daughter's Second Scope
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Lynnwood Sky Guess
Check out my most recent Blog "Ken's Personal Update - 4-2-2013"
- 06-23-2011, 03:32 PM #2
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andy
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revelation 20X80 bino's,camlink tp-2500 camera/bino tripod.
a few bits and pieces and a major addiction
to the sky.
ARCHAEOLOGISTS WILL DATE ANY OLD THING
- 06-23-2011, 03:39 PM #3
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Because some lucky people have scopes like this.
Zhumell Z10, Celestron AstroMaster 114EQ, 10x50 and 15x70 Binoculars
Zhumell 2" UHC Filter
Hyperion 8mm GSO Superview 30mm and a whole case full of Plossls
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andyp180 (06-23-2011)
- 06-23-2011, 03:43 PM #4
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Yes, like Andy says... large amateur telescopes are normally reflectors on a dobsonian mount.
It's subjective as to what you consider large. A 12" dobsonian is not large, I have to bend over to look through mine. A 16" f4.5 is probably getting close to the limit for most people, much larger and a small step is often required depending on the objects elevation. There used to be a member with a 25" dobsonian that used a large step ladder.
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- 06-23-2011, 03:48 PM #5
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What's it like standing on a ladder in the dark? I would think it would give me the willys.
Aging eyes
Canon 10x42 L IS binocular
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UA UniStar Mount, AP AWT000 Tripod
- 06-23-2011, 03:59 PM #6
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Time to buy a cherry picker!
Originally Posted by Original Mike 
Orion XX12G and XT8; 10 inch LX200GPS; ETX-125PE; Celestron NexStar 8SE
- 06-23-2011, 04:07 PM #7
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You know, they might make little ones. Originally Posted by OleCuss Aging eyes
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UA UniStar Mount, AP AWT000 Tripod
- 06-23-2011, 04:09 PM #8
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Dobs I get.. have stood on a ladder more than once... at a star party to view into one of these
I am talking specifically about large Newtonian scopes mounted on a tripod...
Think about 10" that on a fully extended tripod, EQ mount, and near zenith viewing that puts the eye piece at 6+ feet above the ground.
I kept reading reviews about step-stools and ladders and kept asking.. if I was missing something about why not just keep the tripod short for this parts of the sky?
One I was reading about was the Celestron C10 Goto Newtonian..Ken H. 40+ years loving the night sky, sharing that with my 9yr old daughter
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CGEM &ZEQ25GT w/C9.25 "Linda Rosa" - w/Meade 10" SN F4 1000MM "BIG Linda!" * w/Astro Tech AT65EDQ "Tiny Rosa"
4SE & 6SE to be named * Meade Star Navigator 102 "Blue Bird" my daughter's Second Scope
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Check out my most recent Blog "Ken's Personal Update - 4-2-2013"
- 06-23-2011, 04:13 PM #9
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I'm not sure. Possibly they want it to be at comfortable height for most viewing, and for the couple times you might want to look right at the zenith you pull out the stool. You probably wouldn't want to be shortening and extending the legs in a single session because you'd probably have to readjust your polar alignment.
Zhumell Z10, Celestron AstroMaster 114EQ, 10x50 and 15x70 Binoculars
Zhumell 2" UHC Filter
Hyperion 8mm GSO Superview 30mm and a whole case full of Plossls
Saskatoon, SK - 106W, 52N
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- 06-23-2011, 04:29 PM #10
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Probably has something to do with the clearance for the tube when the scope is slewing. Just guessing. Those long telescopes can get into the legs of a tripod especially on a GEM.
JimCelestron C9.25. Atlas EQG mount. Canon 500D unmodded, Celestron ST80 guide scope, SSAG, Meade 6.3 FR, Thousand Oaks dew control with Dewnot straps. Zhumell 8/24mm Zoom, 2"Gso Superview 42mm, Meade 2"QX wide angle 30MM, Meade 1.25 EP and filter set. Tasco 10x50 Zhumell 20x80 bino and a few other odds and ends.
Now where did I put that clear sky button!
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