Question about Celestron CPC 925 with Standard Coatings (555 x 235mm) Telescope

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You can use EMGU libarary , it is very useful

Posted on Jun 22, 2013

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Dear RatnamadamIf you are in India,Please contact to Mr. Ajay Talwar Ot Mr. Amar Sharma.
Thnaks.
Dhananjay Raval

Posted on Jul 09, 2011

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Upside down image


Depends what you're looking at....but if it bothers you, you can buy an image rectifier from the net.

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

1 Answer

I need manual for my bushnell refractor telescope.i can not see anything.


All of Bushnell's manuals are on this web site:

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

Look down the page for your telescope. The manual will NOT tell you how to use the telescope. It is only assembly instructions. Take the scope out in the day time and practice focusing on a distant object. DO NOT USE the 2x barlow if you have one. Just put the eyepiece with the LARGEST number written on it into the focuser. Turn the focus knob to the right and or left until you get a sharp image on a distant object during the day time.

Read my TIPS on my profile page.

Apr 22, 2011 | Bushnell SkyTour 78-9960 (700 x 60mm)...

1 Answer

How can I get a Penta mirror for a Bushnell NorthStar 78-7860 Telescope


I assume you want this for erect imaging. See link below for 1.25 inch. Other brands are widely available.
Erect imaging is not recommended for astronomy since the prism reduces contrast
http://www.opticsplanet.net/meade-928-45-erect-image-diagonal-prism.html

Oct 18, 2010 | Bushnell NorthStar 78-7860 (563 x 60mm)...

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Hi All, I have brought a Black TwinStar GIANT 6" MIRROR W TRIPOD -Reflector Telescope EQ Mount. I have successfully able to assemble every thing except the eye piece settings. could any one please help...


The eyepiece with the LARGEST number written on it is your lowest magnification.

Put the eyepiece into the focuser and practice focusing on a distant object during the day time. The image will be upside down. NOTHING is wrong. All astronomical telescopes show upside down images.

Join this free astronomy forum:
http://www.astronomyforum.net/

You will also need to learn how to polar align the EQ mount. Read my tips on my profile page.

Aug 20, 2010 | Telescopes

1 Answer

Will not focus, only light comes through, no image at all


All the manuals for Bushnell telescopes are located on this web site- look down the page for your model telescope:
http://www.opticsplanet.net/bushnell-warranty.html

Put the eyepiece with the LARGEST number written on it into the focuser, this is your lowest magnification.

Take the scope outside during the daytime and practice focusing on a distant object. Turn the focus knob slowly while keeping your eye on the eyepiece, watching closely for a focused image.

Read my TIPS on my profile page.

Aug 11, 2010 | Bushnell 570x60 Voyager Rotary Refractor...

1 Answer

My telescope images are upside down, how do i correct this?


ALL astronomical telescopes show upside down images, it's normal. Nothing is wrong with your telescope.

For terrestrial viewing you can buy an "erecting prism" which will turn the image right side up.

Like this one:

http://www.skiesunlimited.net/index.php?CategoryID=98


Read my Frequently Asked Questions TIP on my profile page.

Aug 03, 2010 | Fieldvision 114mm Reflector (114 x 114mm)...

1 Answer

Image is upside down - why?


Yes that's correct. All astronomical telescopes show upside down images. Nothing is wrong with the scope.

You can buy an "erecting diagonal" for terrestrial viewing.

Here is one:

http://www.opticsplanet.net/meade-928-45-erect-image-diagonal-prism.html

Aug 01, 2010 | Tasco Astronomical 302675 Telescope

1 Answer

We are seeing things upside down. Any ideas why?


Because ALL astronomical telescopes show upside down images. You would need more glass elements to ERECT the image. However you can buy an "erecting prism" for terrestrial viewing.

http://www.birdbino.com/main/Image_Erecting_Prisms.asp/catalog_name/Astronomics/category_name/EDNECFUVSRWS8KLNTU5E38XSE1/Page/1

Read my TIPS on my profile page

May 28, 2010 | Edu-Science (10166) Telescope

1 Answer

Lpi issues with windows xp


Did you install the driver (CD) that came with the camera-- and are you using Windows XP-- there are known issues with Vista.

Mar 26, 2009 | Meade ETX-90PE (325 x 90mm) Telescope

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Manual


You don't need a manual.
Upside down view through the telescope is normal. The scope is primarily for astronomical use and the concept of "up and down" is null in space.
If you want to use it for terrestrial viewing, you'll need an erecting eyepiece witch will correct up and down and left and right.

Apr 14, 2008 | Telescopes

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