Question about Bushnell 525x Deep Space Reflector Telescope

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I do not get anything through the telescope but blackness.... It is assembled right and all the lens/mirrors are in the right place...

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DID you mount the telescope BACKWARDS? The large mirror is on the bottom of the scope, the focuser on the side of the tube is on the UP end of the tube. I have seen many beginners mount these with the actual open end of the tube pointing at the ground!

Take the scope outside during the daytime and put the eyepiece with the LARGEST number written on it into the telescope. Practice focusing on a distant object.

At night the moon should be your first target. Remember that objects in the night sky are all smaller than the tip of your finger held at arms length. The scope must be pointed directly at them in order to see anything in the eyepiece.

Read my tips on my profile page, and download this free monthly star chart.

http://www.skymaps.com/downloads.html

Posted on Aug 23, 2010

  • Joe Lalumia aka TelescopeMan

    AND your scope will never reach 575 power magnification. Why? Because the maximum magnification of any telescope is about 50 times aperture. Your scope is about 4 inches in aperture so 200 power is the most you will get. Magnification is the least important factor in a telescope.

    Aperture and quality optics are much more important. They lied on the BOX when they said 575 power. This is just one indication that it is what we call a "department store" telescope.

    Read my tips on my profile page.

  • Joe Lalumia aka TelescopeMan

    Just a comment for the OTHER folks viewing this answer. NEVER buy a Tasco, Bushnell, or Vivitar brand of telescope. These are ALL not suitable for the Astronomy hobby.

    You cannot buy a useable scope for less than about $200; just like you cannot buy a useable computer for less than $200. Please stop buying these toy telescopes on Ebay, Wal Mart, and craigslist!

    AND-- read this:
    http://www.texasastro.org/telescope.php

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Posted on Jan 02, 2017

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That BLACK PAPER is there to cause the trap of light and dust and etc from the MIRROR and is held in place usally with adjustable locking screws to balance the reflective properties of the lens.

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I bought and assembled telescope but we are new to telescopes and cannot see anything. I put the lense in correctly. I pull out the bottom cap and can see myself in the mirror within the tube. On the...


POINT THE END with the cap toward the sky. The mirror is on the bottom of the scope. Then put the eyepiece with the largest number written on it into the focuser, practice focusing on a distant object during the day time.

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I have lost the assembly instructions for my grandson's beginner telescope. I have it assemled properly, I beleive, but the set screw that holds the lens in place does not seem to penetrate the housing...


Hate to tell you, but we receive more complaints about this brand of telescope than any other!

Is this a REFRACTOR with a lens in the front, or a REFLECTOR with a mirror?

Any well stocked hardware store can supply you with the small thumbscrew that hold on the eyepiece. BUT this scope is being sold by TOYS R US! What does that tell you about it!

Next time buy your grandson THIS telescope:
http://www.telescope.com/control/product/~category_id=classicdobs/~pcategory=dobsonians/~product_id=08942

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I just assembled my telescope that I received in 2001 it is a Voyager with 750 focal lens. I tried to sdjust the scope outside and I can not see anything thru the lens. I used a 15mm lens to view thru with...


Practice focusing during the day on a distant object at least 100 yards away-- use the eyepiece with the LARGEST number written on it-- and DO NOT use any 2x or 3x barlow to multiple the power.

The moon should be your first target at night.

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Im trying to find out to put my telescope together just got it but no directions any help please


You did not say what brand and model number--

However-- Meade telescopes maintains a web site with the manuals for all of their telescopes. Find one that is similar in style to your telescope and use it to learn about how to assemble yours.

There are really only three styles of telescopes reflector (with a mirror), refractor with a lens in front, and catadioptric with a lens in front and mirror in back--

and only two kinds of mounts-- ALT AZ (up down left right) and equatorial (usually has a counter weight and needs to be polar aligned)-- the general instructions are usually about the same--

Here are the manuals-- which usually include how to use a telescope--

Try the refractors and reflector manuals first--

http://www.meade.com/manuals/index.html

Good luck-



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I have a new vivitar i can not see anything out the lens


TAKE THE CAPS OFF THE ENDS! THE MIRROR MAY HAVE BROKEN INSIDE!

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Upside down images


ALL astronomical telescopes show upside down images it is normal. Put the eyepiece with the LARGEST number written on it into the diagonal. Do NOT use the 2x barlow it is too much magnification for that small aperture telescope.



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

Jan 05, 2008 | Bushnell Voyager 78-9440 (440 x 12.5mm)...

1 Answer

Assenbling


You never said if this is a refractor or a reflector (with mirrors). If it is a refractor you need to collimate the from lens cell-- this is fairly difficult without an optical bench.

If you have a reflector with mirrors then watch this video to learn how to collimate a reflector style scope.

Here:
http://www.andysshotglass.com/Collimating.html



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

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