Question about Meade ETX105EC Telescope w Autostar Controller 497 and Tripod 884

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Meade ETX105EC missing eyepiece holder.

Bought on e-bay. The 90 degree eyepiece holder is missing. Meade's only answer is "the ETX is discontinued and we have no parts". Any suggestions?

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Posted on Jan 02, 2017

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SOURCE: Meade ETX 80 telescope missing parts

You are missing a screw on cap for the rear port, and you need to buy several 1.25 inch eyepieces.

Scopestuff.com sells the rear port cap also you may be able to get one directly from Meade- http://www.meade.com/support/index.html

Several internet retailers sell 1.25 inch eyepieces.

Here is one:

http://www.agenaastro.com/

Posted on Feb 21, 2010

Testimonial: "Thanks Joe! As it turned out I was also missing the 90 degree eyepiece holder."

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SOURCE: Just got a Meade ETX 90 and cannot see anything

Put the eyepiece with the largest number written on it into the TOP of the scope eyepiece holder.

Practice focusing on a distant object during the daytime. It may take several turns of the focuser know.

Also check the TINY setscrew on the side of the focuser knob. It may be loose and need tightening so it will GRIP the focuser shaft.

Posted on Aug 19, 2010

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1 Answer

I need to know about my telescope optrex information . the name on my telescope is exactly\; telescope OPTREX OT 525 astronomical telescope acromatic coated lens F=700 D=60 . but when I look


Optrex did exist but was bought by Koyocera and has disappeared. Optex is an unrelated supplier of security sensors.

From the information you give, you could buy a right angle prism, erecting type, which allows daytime use as well, like this

http://www.optcorp.com/os-d125ei90-90-erect-image-diagonal-1-25inch.html

and a couple of eyepieces suited to the scope

http://www.optcorp.com/meade-12-4mm-series-4000-super-plossl-eyepiece-1-25.html

http://www.optcorp.com/meade-26mm-series-4000-super-plossl-eyepiece-1-25.html

Apr 14, 2015 | Optics

1 Answer

Telescope doesn't seem to work


This issue will be extremely hard to diagnose over the net but I'll give it a try. This is from Meade. The link to the online manual is below: http://www.meade.com/manuals/etx90ec/index.html Unable to see an image through the eyepiece:
  • Confirm that the lens cover has been removed from the telescope.
  • Confirm that the flip-mirror control (16, Fig. 1) is in the "up" position if using the eyepiece holder (4, Fig. 1) so that light is directed to the eyepiece (1, Fig. 1). Confirm that the flip-mirror control is in the "down" position if using the #932 Erecting Prism or doing photography with the ETX-90EC (see Telescope Controls and PHOTOGRAPHY WITH THE ETX-90EC).
It sounds like you are correct about a mechanical issue with the knob that moves the mirror. If you need a quick fix try your local camera repair or watch repair shop as the are familiar with intricate parts. The camera shop would be preferable as they know optics. Otherwise you could ship it to me and I could repair it fro you depending on the availibility of parts if parts were needed. Check my picture for my site address and get contact info there for more information.

Jan 05, 2008 | Optics

1 Answer

How do i convert my 1.25 to a 2in so i can use the meade 56mm 2in eyepiece?


The ETX90 may not have enough back focus for a 1.25 to 2 inch adapter. You will need 1.6 in extra focus. (Try putting a eyepiece barely in the holder and see if you can focus CAREFULLY!) a 56mm eyepiece will seriously vignette since the opening of the scope is only 1.25 inch so do not expect a wide field.
Link below is for an adapter
http://agenaastro.com/blue-fireball-1-25-2-eyepiece-adapter.html

Jan 01, 2013 | Meade 07178-02, Eyepiece Super Plossl 56...

1 Answer

When I look through the lense everything is just black


Take the scope outside during the day time. Put the eyepiece with the largest number written on it into the TOP diagonal. There is a "flip" switch on the back that changes between the rear photo port to the TOP eyepiece port.

Flip it one way or the other until you can see light through the TOP eyepiece. Practice focusing on a distant object during the day time.

Here is the manual:
http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90%20w-autostar%20man.pdf

Dec 15, 2010 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

Just got a Meade ETX 90 and cannot see anything thru the eyepiece. I've tried the focus screw, lens covers are off, and flip switch is in correct position. Anyone know the answer?


Put the eyepiece with the largest number written on it into the TOP of the scope eyepiece holder.

Practice focusing on a distant object during the daytime. It may take several turns of the focuser know.

Also check the TINY setscrew on the side of the focuser knob. It may be loose and need tightening so it will GRIP the focuser shaft.

Aug 19, 2010 | Meade ETX90AT Maksutov Telescope with UHTC...

1 Answer

2 small lens fell out of my telescope how do I get them back in and where do they go ??


The Meade ETX90 does NOT have small lens! It has a large curved lens in the front. and a holder for the eyepiece in the back (top). There is also a camera port in the back, and a flip lever that sends the light either straight back to a camera, or UP to the eyepiece holder.

There is an INTERNAL secondary mirror mounted on the back of the front large lens. If this fell off INSIDE, you will need to remove the front lens to fix it. NOT an easy fix as the optical alignment can get messed up when you do this.

Here is the manual for an ETX90, you should read it completely.

http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90_105_125EC_man.pdf

and for the hand controller:
http://www.meade.com/support/etxautofaq.html

Jun 18, 2010 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

Ik wil graag een Nederlandse handleiding voor de Meade ETX 90


Meade has all of their ENGLISH language manuals on this web site.
http://www.meade.com/manuals/index.html

Here is your telescope- ETX90
http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90%20w-autostar%20man.pdf

A dealer in the Nederland may have one in your language. Locate a nearby telescope shop.

Apr 27, 2010 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

Meade ETX 80 telescope missing parts


You are missing a screw on cap for the rear port, and you need to buy several 1.25 inch eyepieces.

Scopestuff.com sells the rear port cap also you may be able to get one directly from Meade- http://www.meade.com/support/index.html

Several internet retailers sell 1.25 inch eyepieces.

Here is one:

http://www.agenaastro.com/

Feb 21, 2010 | Meade ETX-80AT (240 x 80mm) Telescope

1 Answer

Can't focus on anything at all


Here is the manual-- read it cover to cover--
http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90%20w-autostar%20man.pdf

1. Take off the lens cap

2. Put your lowest magnification eyepiece into the telescope on the TOP eyepiece port-- there is a lever on the side which rotates the diagonal mirror between the top and rear ports --- can you see light through the telescope? If not turn the lever.

3. During the day practice focusing on a distant object at least 100 yards away-- the image will be upside down -- this is not a problem-- no UP or Down in space.!

4. The lowest magnification eyepiece is the one with the LARGEST number on it.

Jan 02, 2009 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

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.

Nov 12, 2007 | Meade ETX-90 (48x90 mm)

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