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Bushnell Rangemaster Eyepiece

Larry,

I noticed your post about having a box of eyepieces. I'm looking for the plastic eyepiece for a Bushnell Rangemaster 7x35 circa late 50's. Here's a link to a picture of the same model... http://fantao.home.att.net/images/rangefpo3f.jpg
Any help would be greatly appreciated. Thanks.

Mike
mike.d.patrick@gmail.com

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If i remember correctly the rangemaster was a rather heavy and large binocular.had very nice optics. if you want unscrew the eyepiece you still have and i can see if i have one. sometimes we epoxy two matchining eyetops when original cant be found..mail the eyepiece to me at the following link and i'll see what i can do......www.reichinstruments.com

Posted on Dec 14, 2008

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I need to know how to assemble the eyepiece on a Bushnell 565 telescope?


The eyepiece DOES NOT assemble. It is all one piece. If you unscrew the bottom or the top-- never do this. You must reassemble the lenses exactly.

The eyepiece goes directly into the diagonal (an L shaped device with a mirror inside, and then the diagonal goes into the tube.. That's it. You can buy eyepieces from dozens of different suppliers. Here is one:
http://www.amazon.com/Televue-15mm-Plossl-1-25-Eyepiece/dp/B0001GO15S

Jul 08, 2015 | Bushnell Optics

1 Answer

Which image erector eyepiece?


Most small 'consumer grade' or 'department store' telescopes use 0.9 inch diameter eyepieces. Better quality ones use 1.25 or 2.0 inch. Any image erector which will fit in the appropriate size focuser will probably be fine. Just select the image erector based on the eyepiece barrel diameter (0.9", 1.25" or 2.0").

Apr 05, 2014 | Bushnell NorthStar 78-7880 (190 x 78.74mm)...

1 Answer

Bushnell 78-9003 telescope purchased at yard sale with no eyepiece. Where can I purchase one that will fit? It talks about a .965 inch eyepiece.


.965 eyepieces are readily available on ebay. A meade 25mm MA (modified achromat) is about $10 plus shipping This will give you 700mm/25mm= 28x power. Avoid any eyepiece marked with a H (Huygens) as they have terrible field of view.
.965 is not a popular size anymore and Bushnell does not make very good telescopes. Don't get frustrated, if you are still interested, buy a Meade, Celestron, Orion quality telescope.

May 15, 2011 | Bushnell Deep Space 78-9003 (525 x 76mm)...

1 Answer

Hi, the plastic bit snapped off the telescope's diagonal (where you fix the eyepiece), and this, plus the eyepiece is nowhere to be found. It was a childhood telescope I am trying to rescue! (a Bushnell...


You can certainly buy both eyepiece(s) and a diagonal, but you may find the price rather high compared with the value of the telescope. You probably don't actually need the diagonal- if you remove the broken one you should find that it is possible to insert an eyepiece directly in the hole it comes out of. The diagonal is useful for two things, it partially erects the image (astronomical telescopes usually display the image inverted), and it provides a more convenient viewing angle.

I am assuming the the eyepiece size is 1.25 inch outside diameter- the standard for small telescopes. Some earlier scopes might require an eyepiece just under an inch in diameter. These will be much harder to find now.

There is a useful website about small scopes on THIS LINK

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1 Answer

Just purchased used. There is no instruction manual. I can only see a little dot of light when looking into the eyepiece. I don't know if all of the part are there....?


All of the Bushnell manuals are on this page.
http://www.opticsplanet.net/bushnell-warranty.html

Look down the page for your telescope. You must insert an eyepiece into the focuser. Do you have any eyepieces?

Oct 05, 2010 | Bushnell Optics

1 Answer

Eyepiece assembly bushnell telescope


You never told us what model number or telescope TYPE you own. Is this a refractor or a reflector. ???

If a REFRACTOR usually you have a diagonal, the diagonal goes into the focuser and then the eyepiece goes into the diagonal.

On a REFLECTOR the eyepiece goes directly into the focuser.

Sep 04, 2010 | Bushnell Optics

1 Answer

Completed setup, can't see anything through eyepiece.


I answered your question already-- TURN THE SCOPE around you have it mounted backwards! The eyepiece end is pointed UP. Like the picture above in your question.

Jan 22, 2010 | Bushnell Deep Space 78-9003 (525 x 76mm)...

1 Answer

I took the eyepiece to my little Bushnell 430 telescope apart. It had more parts than I expected and now I do not know the order to reassemble.


Why would you do that? Never disassemble an eyepiece the interior surfaces do not get dirty if you are reasonably careful. Handling the glass will make it worse.

There are so many variations in eyepiece design it will be very hard for someone to give you exact instructions. Probably best to just buy another eyepiece.

http://www.agenaastro.com/Telescope-Eyepiece-s/3.htm


Sep 21, 2009 | Bushnell Optics

1 Answer

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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.

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1 Answer

Focus with erector eyepiece on


Some eyepieces cannot come to focus in certain telescopes-- try a different eyepiece.

Sep 02, 2007 | Bushnell Voyager 78-9565 (120 x 60mm)...

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