My wife bought a Rokinon DB91060 telescope at a yard sale and it's missing the eyepiece and mounting screws to attach the scope to the base. Can I get these parts, or is it a lost cause?

sad to tell you but we do not do parts hunting here

The bit you are missing is the finder scope, which is a small low-power scope that is used to line up the main scope on an object that you want to view. Without this it can be quite hard to get the scope pointed at anything, as the field of view is quite limited, and more so at higher powers.

It can be quite expensive to buy useful eyepieces for a scope, but they are readily available if the eyepiece mount tube is 1.25 inch inside diameter. The eyepieces that originally came with this scope probably were not very good, and in fact this scope is not up to much. It is rather small for a reflector at three inches diameter. You certainly won't be able to use it at the advertised 600 power, or even at 200. It has neither the resolution nor the light gathering ability with that small an aperture.

I would recommend that you explore the web page at THIS LINK for a lot of good advice about first telescopes, before you spend any money.

Inner scope??? you mean the eyepiece (s) are broken. Measure the hole eyepieces come in 3 sizes, .965, 1.25, and 2 inch sizes.

The .965 eyepieces are very difficult to find as most amateur telescopes use the 1.25 inch size.

Try Telescope Warehouse or Agena Astroproducts for a replacement eyepiece:

http://shop.telescope-warehouse.com/

http://www.agenaastro.com/

Don't ever buy another off brand telescope at a garage sale that you know nothing about.

This is an imported telescope probably from China. You will not be able to contact a manufacturer. Never buy a telescope off of Ebay, at a garage sale, from Wal Mart, or craigslist, unless you know exactly what you are buying.

Buy from either a local telescope shop or online from reputable retailers like these:

http://www.meade.com/locator/

Your scope appears to be on an equatorial mount which must be polar aligned in order to be used. Google "polar alignment" and learn how this is done or read my TIPS on my profile page.

Eyepieces come in 3 sizes .975, 1.25, and 2 inch. Measure the hole in the focuser. Any of the retailers listed above can sell you an eyepiece.

Also log on this web site and read the forms-- for lots of information:

http://www.astronomyforum.net/

You may be able to call Galileo telescopes and order the parts.

http://www.galileosplace.com/

If not and if the eyepiece is a 1.25 inch (measure the hole in the focuser), then you can buy eyepieces and weights from several different retailers on-line:

http://www.agenaastro.com/

http://www.optcorp.com/

The screw you can find at a well stocked hardware store.

The manual WILL NOT show you how to find objects in the sky. Also which Rokinon do you own the number you gave is not enough information. See this web site:
http://www.pronto.com/user/search.do?displayQuery=rokinon%20telescope&SEM=true&query=rokinon%20telescope&adid=1257527498-7823004d-0_gs&ref=rokinon%20telescope&creativeid=3404631457&site=

More information needed and you will NOT find a specific assembly manual for that scope. However they all assemble in a similar fashion based on TYPE of telescope-- Refractor or Reflector.

Meade brand maintains a web site with all their manuals. Look under either the REFLECTOR or REFRACTOR header for one that is similar to your scope and download it for free.

Again the manuals DO NOT TELL YOU how to find objects in the sky. I would recommend that you buy these two books which will help you learn what you can see at night.

"Turn Left at Orion" and "Nightwatch". Both are available at any large bookstore or on Amazon.com.

Read my TIPS on my profile page, and read these two web sites to learn about the TYPES of telescopes and MOUNTS for telescopes.
http://www.texasastro.org/telescope.php

http://www.texasastro.org/mounts.php

This is a reflector style telescope. The MIRROR is in the base! Light enters the front near the focuser and goes down the tube and bounces off the mirror and back to the front and through the eyepiece. The EYEPIECE end is pointed up.

Your scope TUBE should look like the reflector telescope on this web page:

http://www.amazon.com/Edu-Science-Astro-Nova-102-Telescope/dp/B001NLOQN2

Wish you had NOT bought this telescope. For about the same price you could have bought this:
http://www.telescope.com/control/product/~category_id=classicdobs/~pcategory=dobsonians/~product_id=08942

The scope above has a 6 inch mirror which is almost twice the size of the scope you bought.

No -- you cannot buy parts for that telescope--- it's a toy scope. Hope you did not pay more than $2.00 for it.

ebay is a great resource for eyepieces, i would suggest a 26mm ma.
the eyepiece should drop in. if not you might be missing the image erecting diagonal. when the eyepiece is installed you should be looking perpendicular at the tube.

cantact bushnell...they have it all