Need help

[y_vettlee]

I was given this but it is missing I think the eyepiece, I want to get it working for my family I have measured and I think it's an eyepiece it's 2 inches but I can't find a model number, can anyone help?

[jacobingonzo]

this is what it should look something like this

https://www.meade.com/telescopes/refractor/lx70-r5-5-ota.html

the piece at the end you require is a 2 inch star diagonal and an  eyepiece- and you would normally slot in a 2 inch eyepiece  but these diagonals usually have a 2 inch to 1.5 inch reducer to accept a 1.5 inch eyepiece - these can be obtained from an astro retailer - depends where you are US? you can search online for retailers in your country or there may be some second hand available again depends where you live as to what site to visit- if you let us know we can suggest some places

this is a generic diagonal - the meade specific one will be much more expensive

https://www.altairastro.com/altair-2-inch-standard-star-diagonal-mirror-for-refractor-2250-p.asp

any reputable retailer will be willing to advise you if you contact them to discuss your needs- they are usually very friendly

and there is a wealth of eyepieces available in different sizes from astro retailers or second hand like from eBay etc- stock ones would normally be 10mm and 25mm received with a new scope

J

Edited December 22, 2020 by jacobingonzo

[Ricochet]

Unfortunately, the telescope drawtube (the silver part you're pointing at) appears to be missing the eyepiece clamp that should be on the end of it. You would have to determine the measurements of the thread on the end of the drawtube and then see if you can find a 3rd party clamp available for that size. Once you have a clamp you could then look at getting a suitable diagonal and eyepieces. If possible, I would go back to whoever gave you the telescope to see if they can locate the missing parts (particularly the clamp, the rest are standard sizes and can be easily replaced). 

The exposed cog on the mount suggests you may be missing at least one motor. Does the controller allow you to move the mount at all? If not does it move smoothly by hand? If the mount does not move reasonably well or the telescope does not stay pointing at whatever you point it at you would also need to look for a new mount, plus tube rings and a dovetail bar to fit the telescope to the new mount. At this point I would suggest you would be better off buying a complete new telescope.

[Cosmic Geoff]

I'd just add that should you manage to rebuild the focuser and eyepiece attachment, you should also acquire a 2" to 1.25" adapter, which would allow you to use 1.25" eyepieces, which for the shorter focal lengths (e.g. 15mm) are cheaper and more practical than 2" barrel eyepieces.

I would agree that if too many item-specific and hard to source parts are missing it could be better to just buy another scope outfit.

As a rough guide, a complete focuser assembly could cost £100, and eyepieces £30 to 50 each, and a replacement GoTo mount and tripod for a refractor that size, £550.

Also as a guide, a similar outfit, a Sky-watcher 120mm Evostar on a EQ-5 Synscsn Goto mount, costs about £839, so if you can fix yours it is worth having, or re-selling if you can't fix it.

Edited December 22, 2020 by Cosmic Geoff

[y_vettlee]

I am in United States