Question about Vivitar 50x / 100x Refractor Telescope

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My son got a telescope and we are unable to focus on anything.

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  • shjabe Jan 10, 2009

    do not use techical language. As a granndparent I know absolutely nothing about a telescope. I would like to have very clear instructional pictures .

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Use the lowest magnification eyepiece which is the one with the largest number on it--- DO NOT use the barlow which will DOUBLE the magnification!

Go outside and focus on a distant object (during the daytime) and practice focusing the telescope. Move the focus know slowly in and out until you get a sharp image.

Posted on Jan 05, 2009

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Flip the housing for the objective lens (the black cylinder at the end of the telescope) around. the lens was installed incorrectly. you'll have to secure the housing into place with something. i used electrical tape, which doesn't look too bad.

Posted on Mar 03, 2009

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SOURCE: we have just setup the

The first step would be to start in the daylight and use the main telescope to scan your local landscape. Perhaps you have some objects like distant telephone poles that you can lock on to. After this, adjust the little spotting scope on the side of the main telescope body so that it is looking in the very same place. You are now setup for some night time viewing.

Note: Objects that you view in your local landscape are probably going to appear as being upside down. This is normal.

Posted on Jan 13, 2011

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Posted on Jan 02, 2017

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1 Answer

Two years ago my son got the astro-nova 102 mm for Xmas. Since then we have not been able to see anything on it, Everything looks dark. Tried to return it to toys r us but since we did not have the receipt...


First NEVER buy another telescope from Toys R Us ------- we get the most complaints on this telescope brand.

Two suggestions-

1. Find a nearby Astronomy club and have the members help you with the scope.

2. This is what is called a REFLECTOR style telescope. Many beginners setup this telescope BACKWARDS. The large mirror is on the bottom of the scope-- and the eyepiece and focuser is on the UP end of the scope near the front on the side of the tube. Like this picture-
http://www.myfirstscope.com/reflector.html

3. Take the scope outside during the day time -- put the eyepiece with the largest number written on it into the focuser. DO NOT USE the 2x barlow if you have one. Practice focusing on a distant object.


www.telescopeman.org
www.telescopeman.info
www.telescopeman.us

Aug 03, 2011 | Edu-Science Optics

1 Answer

My daughter recieved a telescope 50x/100x w/ tripod for christmas and we are unable to see anything out of it? Not to mention that one of the focus lens did not come with a cap.


This is considered a toy telescope. Put the eyepiece with the largest number written on it into the focuser-- DO NOT USE the 2x barlow if you have one. Practice focusing on a distant object during the day time.

Read my tips on my profile page

Dec 26, 2010 | Vivitar (1607225) Telescope

1 Answer

We are unable to see anything through the scope. Can you send instructions that are in laymens terms?


There are TWO types of telescopes a refractor and a reflector.

The picture you posted is a refractor telescope.

Put the eyepiece with the largest number written on it into the focuser. You may also have a diagonal which contains a small mirror and makes it easier to look through the telescope when it is pointed up.

If you do have a diagonal, put it into the focuser first, and then put the eyepiece into the diagonal. Take the scope outside during the day time and practice focusing on a distant object.

Aug 09, 2010 | Barska Optics (AE10752) Telescope

1 Answer

Unable to focus telescope


You never said what type of telescope you have???? While you can buy replacement focusers they are expensive and probably not worth doing. Here is a link to some replacement focusers.

http://www.telescope.com/control/category/~category_id=focusers

Sep 07, 2009 | Tasco 600X60mm Astronomical Refractor...

1 Answer

Unable to see out telescope, might be missing a lens


You need a "diagonal" and an eyepiece on the "small end" of the telescope-- where the focus knobs are located.

Do you have these pieces? If you do put the eyepiece with the LARGEST number written on it into the diagonal and then put the diagonal into the telescope. The bigger the number the LESS magnification.

Go outside during the day and practice focusing on a distant object at least 100 yards away --- the lower magnification helps you learn how to focus.

Mar 13, 2009 | Bushnell Deep Space 78-9512 (120 x 60mm)...

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

Cannot see anything out of main telescope


Do NOT use the barlow lens-- put the lowest magnification eyepiece into the scope-- practice focusing on the moon -- turn the focus knob slowly in and out until you get a sharp image.

Telescopes only show an area of sky about 1 degree wide or LESS--- this is about the size of the TIP of your finger held at arms length................ your scope is best used at low magnification.

Dec 30, 2008 | Edu-Science (10166) Telescope

1 Answer

Can't focus an image - Tasco 49TN


if this is a "49mm" objective it is very had to see anything.. I recommend at least 70mm of aperture.

Dec 21, 2008 | Tasco Specialty 49TN Telescope

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