Question about Meade ETX-90 (48x90 mm)

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ETX-90 Focus My telescope was working properly before it was moved to Florida by a moving van. I can not now get the telescope to focus properly. I have tried adjusting the focus knob but no luck. I am also not sure if the eyepiece has been tampered with or not. Is there an illustration showing how the lenses should be placed in the eyepiece?

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Re: ETX-90 Focus

I suggest trying a different eyepiece first to see if that's the problem. Otherwise, if it was moved without adequate protection, there is a chance the mirror was shifted or damaged. A damaged mirror can't really be fixed since it's specs are very rigid. If it turns out to be a problem with the mirror the best thing to do is find an expert on telescope mirrors to try and fix the problem.

Posted on Nov 12, 2007

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I have a Bushnell Voyager telescope and can't see anything thru it at night!

Did you set it up according to the provided instructions?
Do you have a low power eyepiece inserted at the viewing end?
Have you aimed the telescope at the moon as a basic test of
If your telescope is not properly aimed at the target (a star or a planet, or other object in the night sky) then you will see nothing.
If the power of your eyepiece is too large and your telescope aim is
not "dead on", then you will see nothing.
Have you tried using the scope in the daytime? Do you see anything?
Aim at a specific object, or section of an object, like the top of a lamp-post about a block or two away, and see if you can focus on
it the eyepiece.
You really need someone at your side who has experience in using
astronomical telescopes. That would be the quickest way to solve
any problems you have.
Unless your question is very specific, and unless you provide as
much detail as possible about your problem, it will be difficult for
anyone to provide you with speecific answers that will help you
solve your problem.

May 06, 2014 | Bushnell 789961 Voyager Sky Tour 700mm X...

3 Answers


You will need top take it to someone you specializes in telescopes and can get you the right part and install it correctly, Telescopes are not everyday items you can get parts for anywear. Try a scientific store and ask around, they may know somewhere to take it.

Feb 23, 2008 | Fujinon Super 80 (25x80 mm)

1 Answer

Need instruction manual for 1996 or 1997 etx 90 basic model

The manuals are all available to download from

If your scope has the motor drives and a control panel into which a controller could be plugged, then you just need to buy an Autostar 497 - always available on eBay for about £85. However, there are older models of the ETX which only have one motor or as a spotting scope for terrrestrial use with no motors - Autostar cannot be connected to these.

Look at the pictures of scopes on eBay which come with Autostar - if your looks like these, Autostar will fit. Else you are out of luck!

Apr 11, 2009 | Meade ETX-90 (48x90 mm)

1 Answer

I can't focus, i don't see nothing!!

are you putting the eracting system on first?

Nov 25, 2008 | Celestron C130 Mak (63x130 mm)

1 Answer


Are the batteries flat?
Is the cable properly connected to the scope? Unplug and reinsert both ends.

Aug 24, 2008 | Meade ETX-90 (48x90 mm)

1 Answer

One of the gears in the Azimuth motor got a flat spot because the worm gear was adjusted too tight. It is a 24 tooth nylon straight gear, very small- only about 1 cm across, but if this gear isn't working...

Below is the contact information for Meade parts. They are the only reliable source unless you know a local dealer that you can trust.
Jerry G.
Meade Instruments Corporation
6001 Oak Canyon
Irvine, CA 92618

(800) 626-3233 (U.S.A. Only)

Fax: (949) 451-1460

Apr 30, 2008 | Meade ETX-90 (48x90 mm)

1 Answer

I have a Kodak camera with a lens adapter that has 55 mm threads. How do I attach the Meade 64t-adapter to it?

Try a photo shop to see if you can get a T-adaptor to fit your camera (this is for SLR cameras without lens attached - the telescope becomes the lens)

But if you mean the 55mm filter threads, ie with the lens still on the camera, then you have the wrong thing. You need instead a contraption that holds the camera in position to take photos through the eyeepiece of the telescope (ie both telescope eyepiece and camera lens remain in place). With non-SLR cameras, that is the way to do it.

Apr 18, 2008 | Meade ETX-90 (48x90 mm)

1 Answer

Kenko Pro Field Deluxe 70a

my d70 telescope willnot focuse properly from new when you zome in any small bit
it has a 50x-40-30 -20x on it

Apr 07, 2008 | Kenko Pro Field 20-50 X 70mm Spotting...

1 Answer

Meade etx-80 sticking

Some (not all) versions have an end stop - it it just reaching that? The scope will rotate only aboit 3 complete turns between the 2 ends.

The 'correct' starting position is as follows: Place scope on tripod or table with control panel at the West. Unlock the declination lock (horizontal slew). Rotate scope anticlockwise until it hits the end stop, Then roate it back clockwise until scope is pointing North (should be about 3/8 of a turn, as the end stop is at South West). Then lock the declination, Set the tube horizontal and continue with the alignment process.

Autostar always thinks you have set the position like that. If you haven't, it will work OK until it tries to rotate past the point it won't go, then chaos results!

Feb 12, 2008 | Meade ETX-90 (48x90 mm)

2 Answers

Tasco propoint PDP2 scope

Are you looking set the eye relief or the focus ring?

For eye relief you need to loosen the scope in the rings, mount the rifle to your shoulder with your standard hold and cheek weld. At this point, slide the scope back and forth in the rings until you obtain a full field of view. Tighten one of the rings slightly, dismount and remount the rifle several times to ensure correct adjustment. Level scope and tighten rings a final time.

For focus adjustment (remember that you are using the eyepiece to focus on the cross hair, not your target!) loosen the lock ring and turn the eyepiece until the cross hair is focused. It is best if you check it several times by closing and opening your eye several times. The crosshair should be instantly in focus. If your eye must adjust, then you need to refocus until the focus is instant.

The two dials on the scope are for adjusting the bullet point of impact. They will typically move POI 1/4 inch at 100 yards.

Nov 08, 2007 | Spotting Scopes

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