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I need the screw on eyepiece that is 1" ( or .965" )that fits on a discovery channel telescope

This is the piece that you put your eye up against to look through the telescope

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Hardware store with example

Posted on Dec 12, 2014

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I can't see a thing through the eye piece


Is this a reflective telescope? You need to make sure a couple things. Make sure the small mirror is still in place. Usually the eyepiece can be pulled gently out. Make sure no packing material is on the inside of the eye piece.

Jan 17, 2015 | Optics

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Just bought thJust bought the vivitar telescope for my daughters birthday. If we look through the tube where you put the eyepiec we can see the reflection of our eye, but when we put the eyepiece in it is...


Put the diagonal in the scope first and then put the eyepiece with the largest number written on it into the diagonal. TURN THE FOCUS KNOB to focus the telescope. Practice during the day time on a distant object.

Read my TIPS on my profile page.

Jan 23, 2011 | Vivitar (1607225) Telescope

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The eye piece lens is missing. How do i find the model number of the telescope to order a new eye piece and a manul for this telescope


Most telescopes use a standard fitting eyepiece with a 1.25 inch outside diameter barrel. You can measure the mount where the eyepiece goes to make sure that yours is this size, then search on eBay or Amazon for "1.25 eyepiece" and you will find many available. None of these will be made by "Edu-Science", but any make will fit.

The other variable will be the focal length of the eyepiece, which is what determines it's power. The power of the scope will be the focal length of the main objective divided by the focal length of the eyepiece, so a 9mm eyepiece will give a higher magnification (and be dimmer and harder to focus and find objects) than a 20mm eyepiece. It is usual to have two or three different focal length eyepieces for viewing different objects.

You will find a large variation in prices, which is partly due to the difference in quality and type of construction of the eyepieces. Kellner eyepieces are simple and cheap, whereas Possl or orthoscopic ones are more complex and cost more. There are reasons why people will pay more for the better eyepieces. Avoid eyepieces marked with the letters "H" or "SR" before the focal length.

There is an excellent website for beginner telescope users at THIS LINK

Jan 20, 2011 | Edu-Science (10166) Telescope

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I recently purchased a Tasco Starguide telescope. Aparently the eye piece it came with does not even belong to the telescope. Will the eye piece to this particular telescope even be available for...


Telescope eyepieces are interchangeable. Most scopes come with two or three, of different focal lengths (to give different magnifications), and enthusiasts frequently buy others, either to get a wider range of focal lengths or to get better quality.

I do not know what you mean by "does not even belong to the telescope". Most eyepieces are a standard size, with a barrel of 1.25 inches outside diameter. If your eyepiece mount is that size, you can use any make of eyepiece that fits. The Tasco brand name is not associated with high quality eyepieces, so if the one you have is another make then that is not a problem in itself.

You can find many eyepieces for sale on Amazon or eBay by searching for "eyepiece 1.25". You may want to familiarise yourself with eyepiece issues by visiting THIS SITE, which has useful basic information.

Jan 19, 2011 | Tasco Starguide Computerized 80mm...

2 Answers

We have a vivitar reflector tel 76700 not sure in assenbly of eye piece


Just put the eyepiece with the largest number written on it into the focuser. Take the scope outside during the day time and practice focusing on a distant object.

Dec 28, 2010 | Vivitar (1607225) Telescope

1 Answer

The eye piece keeps falling out.... What holds it in? Bushnell voyager 78-9565


There are several different types of eyepiece holders:

Set-Screw-- this is a small screw on the side of the diagonal that holds in the eyepiece.

Compression ring-- again a small set screw but a brass compression ring tightens onto the eyepiece.

Plain Compression Diagonal-- the diagonal is a tight fit to the eyepiece- try binding it slightly in to get a tighter fit.

Dec 17, 2008 | Bushnell Voyager 78-9565 (120 x 60mm)...

2 Answers

The main eye piece is missing the lens.


yes you can..most brands of telescopes will fit others as far as eyepieces go..so if you call bushnell@18004233537 im sure they can help...good luck....... lary@reichinstruments.com

Oct 31, 2008 | Tasco Astronomical 302675 Telescope

1 Answer

Konus 1730


This is a simple refractor telescope-- PUT the diagonal into the focuser and then put the eyepiece into the diagonal-- that's all there is too it! :)

Practice focusing during the day time on a distant object.

Jul 12, 2008 | Konus 1730 D.60/F.800 Refractor Telescope...

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