Question about Bushnell Optics

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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....?

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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?

Posted on Oct 05, 2010

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I have never had a telecope before and have purchased the Celestron 114EQ modelr n 31042 Im looking for step by step instructions on how to use it


Do you have a manual?

This is a small reflector style telescope on an equatorial mount-- the mount must be POLAR ALIGNED in orderr to be used properly. Guess you did not know that when you bought an EQUATORIAL mount.

Read this:
http://www.astronomy.net/articles/4/polaralign.html

Once the scope is polar aligned place the eyepiece with the largest number written on it into the focuser. The moon should be your first target at night. the RA knob and the DEC knobs (slow motion controls) are used to keep the object centered in the eyepiece.

Download this free planetarium software --
www.stellarium.org

Aug 25, 2011 | Celestron PowerSeeker 114 EQ Telescope

2 Answers

Cant see ****


Cannot see anything in the daytime? We need more details.

Put the eyepiece with the largest number written on it into the focuser. Try focusing on a distant object during the day time.

You must follow the setup procedures in the manual for accurate GOTO function at night.

Nov 09, 2010 | Celestron NexStar 114GT (269 x 114mm)...

1 Answer

I have a Meade EXT90. A black dot appears in the middle of every object I view (Jupiter, Mars, etc) with the exception of the moon. Any ideas on waht that might be? Thank you.


The black dot means you are way out of focus.

In an ETX90 Mars will always be a TINY disk, except under extreme magnification.

Jupiter is also a small disk but a little bit bigger.

Next time you try for Jupiter focus on the MOONS until they are tiny points of light like little stars.

Also certain eyepieces have this as an unwanted trait. Try another eyepiece -- start with the one with the largest number written on it which will be your LOWEST magnification.

Sep 08, 2010 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

How I know the red dot is working ok, is


This is a 60mm telescope not much bigger than a 10x50mm pair of binoculars. Your maximum magnification will be about 100 power. Yes I know they said 200-300 power on the box. This was a lie.

Do not use the 2x barlow. Probably be just too much magnification. Put the eyepiece with the largest number written on it into the telescope; then try the same eyepiece with the 1.5x barlow. That is probably all the magnification the scope can handle.

Stars are always pinpoint light sources, no matter how large the telescope. They are hundreds or thousands of light years away.

The "red dot" should be pointed at exactly the same spot as what is in the eyepiece. Center a bright star in the eyepiece, then without moving the telescope... center the red dot on the star. Now you can use the red dot to POINT the telescope exactly to a sky object.

This web site may also help you:
http://www.cloudynights.com/item.php?item_id=810

Dec 28, 2009 | Konustart 700 (120 x 60mm) Telescope

1 Answer

The Red Dot finde scope on my 78-8831 doesn't look like depicted in the user manual for this telescope. It looks like on the picture for 78-8840. Oh, by the way, the user manual is just about the worst...


Bushnell is NOT known for their quality telescopes. Sorry.

The red dot finder must be aligned with the main tube, you can do this during the daytime.

Focus on a distant object using the telescope like the top of a telephone pole. Without moving the telescope, adjust the red dot so it falls on the exact same object.

This may help you also:

http://www.cloudynights.com/item.php?item_id=810

Nov 01, 2009 | Bushnell NorthStar 78-8831 (525 x 76mm)...

1 Answer

Minolta 5 degree viewfinder instructions for my auto meter IV F.


The bright circle seen in the eyepiece indicates the measurement area. When measuring subjects at about 1 m (3.3 ft) from the meter, use the eye point (that is the dot that you will see somewhat off center, is what they illustrate,) for close-range subject.

Mar 21, 2009 | Cameras

1 Answer

Seeing black during the day


Here are the Bushnell manuals which may help you--

http://www.opticsplanet.net/bushnell-warranty.html

Mar 08, 2009 | Bushnell Deep Space 78-9518 (675 x 114mm)...

1 Answer

Misplaced lenses


You don't need to get Vivitar brand eyepieces to get replacement ones for your telescope. I'm not sure of the specifications for this particular telescope but in general they come in two barrel sizes for the eyepieces. The diameter of your eyepiece is probably 0.965" but could come in the more standard 1.25". You can measure the diameter and determine this quickly.

Once you know the diameter to shop for you can look for the focal length of the eyepiece you wish to purchase. They are rated such as 4mm, 10mm, 25mm, etc. The smaller numbers give you higher magnification. You can calculate the magnification by dividing the telescopes focal length by the eyepiece focal length. For example, let's say your telescope is has a focal length of 360mm and you have an eyepiece rated 10mm. Divide 360 by 10 and that gives you a magnification power of 36.

You can find eyepieces at many telescope dealers on the internet. Your selection will be far less if you use 0.965" eyepieces. You can purchase 0.965" to 1.25" adapters so that you can use the larger eyepieces with your telescope. However, on some telescopes the adapters will cause the new eyepiece to not come into focus.

You'll also find that eyepiece prices go all over the place. A good general purpose eyepiece is a type called the Plossl. The better eyepieces have more coatings too that allow more light to get through to your eye. You'll find these listed with terms like "fully multi-coated".

I hope this helps.

Good luck and clear skies!

-jodair

Feb 11, 2009 | Vivitar (1607225) Telescope

1 Answer

Red dot finder scope


Simple-- you can also do this during the day on an object at least 100 yards away-- but at night; get the moon centered in the eyepiece and without moving the telescope center the red dot on the moon. This will get you almost aligned-- then put a bright star in the eyepiece and readjust the red dot to center the star.

Jan 09, 2009 | Bushnell NorthStar 78-8831 (525 x 76mm)...

1 Answer

How do you use the red dot finder? and when I look throught the format eyepiece everything is upside down.... Thank you Stacie


Astronomical telescopes show all objects upside down and reversed-- this is not a problem; there is no up or down in space.

The red dot finder helps you point the telescope-- focus on a distant object and center it in the eyepiece.

Without moving the telescope -- adjust the red dot onto the object. Now you can use the finder to locate objects.

Apr 13, 2008 | Bushnell Voyager 78-9945 Telescope

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