Guide :Optics : Meade 8" LX90-GPS Telescope with UHTC

Lx90 I have just set up my meade lx90 and looking through the lens all I can see is black ball in the center that appears to be the secondary mirror surrounded by its baffle - I'm confused.  Help!

Posted by revahamilt on Apr 07, 2008

Research, Knowledge and Information :


How To Avoid The Agony When Buying Your First Telescope


136 Responses to "How To Avoid The Agony When Buying Your First ... can collect with its mirror or objective lens ... visual set up that you just ...
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Fixing Common Telescope Problems - fraserf.id.au


Fixing Common Telescope Problems ... You should be able to see the secondary mirror, ... Contact lens wearers may see pearly-looking haloes around bright objects if ...
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Meade Instruments 2011 by Astro A/S - issuu


... Meade Instruments 2011, Author: ... Helps aligning the mirror cell with the trusses for easy set up. ... with its own 35mm-to-250mm lens, atop any Meade LX90, ...
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Weasner's General Feedback Page


The problem I'm having is I just hooked up my quickcam ... it'd help (some LX90 folks have done that) ... That "hole" you see when out-of-focus is the secondary mirror.
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Meade LX90 Instruction manual - manualzz.com


Black & Decker Bosch Canon Cisco Craftsman Dell Epson HP Motorola Philips Samsung Sharp Sony Yamaha other ... Meade LX90 Instruction manual ...
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Which CAT? - Springer


... Meade appears to have ... or just someone who wants a telescope that can be set up ... they use a subaperture corrector lens mounted on the secondary mirror ...
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Meade LNT Instruction manual - manualzz.com


Black & Decker Brother Canon Casio Craftsman Fujitsu HP Makita Panasonic Philips Samsung Sharp Targus ... Meade LNT Instruction manual ...
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Weasner's General Feedback Page


I tried a little manual pressure on the stops to see if it would move through, ... I'm sure it's all my ... but my Dad has just brought a Meade EXT125EC and as we ...
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The New CCD Astronomy.pdf - Scribd


A camera with a lens set to an fstop setting of ... (center). such as the secondary mirror of a SchmidtCassegrain ... The New CCD Astronomy 35 . can ever do away with ...
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Schmidt-Cassegrain Telescope | Gil Nonato Santos - Academia.edu


Academia.edu is a platform for academics to share research papers.
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Suggested Questions And Answer :


Lx90 I have just set up my meade lx90 and looking through the lens all I can see is black ball in the center that appears to be the secondary mirror surrounded by its baffle - I'm confused.  Help!


Put a diagonal into the scope, and select the lowest power eyepiece you have-- that's the one with the largest number on it.During the daytime practice focusing on a distant object-- then align your finder scope crosshairs to match what you see in the eyepiece. Be sue to read the manual and learn how to enter, time, date, and site-- calibrate motors, and train drives-- Clear Skies
Read More At : Meade 8" LX90-GPS Telescope with UHTC...

I recently aquired the bottom part of a Meade Lightbridge 10" Truss Dobsonian Telescope. This includes the Primary Mirror & tube that contains it plus the 3 Struts and not much else. I think I can make myself the Base, but the problem I have is with the top tube that holds the secondary mirror & focuser. I need to know the exact dimensions of this tube that holds the secondary mirror & focuser so I can match this with parts (the secondary mirror & tube, I already have a focuser I can use) I can buy from vendors. Alternatively, do you know of someone with an undamaged secondary mirror & tube for a 10" Meade Lightbridge Truss Dobsonian Telescope willing to sell it? call Ken at 615-832-7464 or e-mail at [email protected] and let me know Ken


Try posting this question on the www.cloudynights.com FORUM, either in the REFLECTORS topic, and or ATM, Optics Topic.Someone will answer you with the exact dimensions You can also post a Free Classified ad there -- a WANTED ad looking for the entire missing top section, Meade "may" also be willing to sell you this.www.meade.com.Clear Skies
Read More At : LightBridge 10 in. Standard (600 x 254mm) Telescope...

I need a manual for meade 4501 telescope - Discovery Channel Meade 8" LX90-GPS Telescope with UHTC


Look on Meade's web site here:http://www.meade.com/manuals/index.html
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Meade LX90 GPS - When the telescope slews to a new location (tour or manual slew), the telescope then slews up a few degrees. I have to manually slew the scope down several degrees and hope I've guessed the correct amount the telescope will move when I'm done. It also moves up even when I move the scope left or right!


Calibrate motors and then TRAIN the drives-- this sets the gear backlash.You should Calibrate motors every time you take it outside and Train drives at least once every year. The symptom you describe is called "rubberbanding".Train the drives.
Read More At : 8" LX90 Schmidt-Cassegrain Telescope non-UHTC w/Autostar......

My computer will not recognise my meade lpi camera


This is a known problem with VISTA--- works fine in XP-- However make sure you have the latest version of Autostar Suite and Envisage from the Meade web site-- http://www.meade.com/support/downloads.html
Read More At : 8" LX90 Schmidt-Cassegrain Telescope non-UHTC w/Autostar......

Meade LX200R 12" Mirror Lock


The 'lock' is a ring gear that closes a ferrul against the draw tube to restrict its motion. It is not intended to be a hard lock. Try the Meade Advanced Users Group for further tips.http://www.mapug-astronomy.net/
Read More At : 8" LX90 LNT Schmidt Cassegrain Telescope with SmartFinder w/......

I have a Meade LX90 older model. Today I noticed thet I cannot adjust the tube easily after releasing the Declination lock. Scope works fine under power and tracks fine as far as I can tell. Any suggestions? Hank Chernin


You could have a broken clutch ?? -- see Jan's page on the LX90 for dis-assemble instructions.http://jan.eaglecreekobservatory.org/
Read More At : 8" LX90 Schmidt-Cassegrain Telescope non-UHTC w/Autostar......

I need to replace the main and the secondary mirrors of a Meade Starfinder Telescope with an aperture of 6 inches. Where could I get those accesories ?.....


You have two choices. 1. Remove the mirrors and send them off to be recoated.2. Buy a new primary mirror and a secondary mirror.Here are some on line retailers:http://www.spectrum-coatings.com/Telescope-Mirror-Prices.htmhttp://www.alcoat.net/http://www.pinesoptical.com/http://www.fpi-protostar.com/quartz.htm
Read More At : Starfinder Telescope...

I have a Meade LX-90 8 inch telescope that gets a motor fault failure in declination. I have done all the usual attempts to fix it Ex. train drive which geberates error, swap out autostar, autostar cable, reseat cables on the dec motor board etc. On approx 11/2010 I posted this same question to FixYa and they gave me the name of a person who I beleive lived in Haverhill Mass who I contacted thru the Yahoo LX-90 user group and was planning on bringing my scope to him for possible repair. As luck would have it I had a harddrive failure and lost all infomation about this person (should have put the info on paper) Yup I know about backups, had external HD backup which did not work. Is it possible that you would still have this persons name so I could contact him again. Thank You In Advance John Maher Hudson Ma [email protected]


Well it could be several people:Ron Sampson -- available on the Yahoo LX90 group post a message for him- he can repair any of the boards inside the scope and also the hand controller.or The Astronomy Shoppe- http://www.astronomy-shoppe.com/
Read More At : 8" LX90 Schmidt-Cassegrain Telescope non-UHTC w/Autostar......

Loose dirt on mirror Meade Lx6


Nope, the dust is on the webcam sensor. The telescope mirror is too far away to influence the image. Most modified cameras have no window to keep dust off the sensor's cover. A camera lens cleaning brush works fine. Also, some cameras have 'hot pixels' that are defects in the sensor, and are permanent.
Read More At : 8" LX90 LNT Schmidt Cassegrain Telescope with SmartFinder w/......

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