Question about Cstar Optics EQ Series (T45375) (375 x 114mm) Telescope

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Cstar eq-3700 - Cstar Optics EQ Series (T45375) (375 x 114mm) Telescope

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I lost the manual. how does it work ??!!! i think i've lost some eyepieces as well.

This is a very simple REFLECTOR style telescope. The reviews are very bad-- see this:

Simply put the eyepiece with the largest number written on it into the focuser and practice focusing during the day time on a distant object. There is no manual for this scope anywhere on the internet-- it is a very cheap low cost imported telescope.

Also the tripod is way too small and shaky.

Aug 10, 2011 | C-Star Optics STRATUS (UB-3700) Telescope

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Tengo el tele bloqueado que puedo hacer para desbloquearlos

Both axis can be unlocked by loosening the knobs holding each axis.

Nov 29, 2010 | Cstar Optics EQ Series (T45375) (375 x...

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I recently bought a Cstar Optics T45375 from a garage sale. it seems one of the inner scopes inside the eye piece is missing. is there anywhere i can go to see if it is missing and if so where can i get a...

Inner scope??? you mean the eyepiece (s) are broken. Measure the hole eyepieces come in 3 sizes, .965, 1.25, and 2 inch sizes.

The .965 eyepieces are very difficult to find as most amateur telescopes use the 1.25 inch size.

Try Telescope Warehouse or Agena Astroproducts for a replacement eyepiece:

Don't ever buy another off brand telescope at a garage sale that you know nothing about.

Aug 30, 2010 | Cstar Optics EQ Series (T45375) (375 x...

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Hi i'm looking for a manual for a cstar stratus UB-3700 76mm telescope can you help?

You will not find a manual. BUT you do not need one.

This is a very simple reflector telescope on an Alt Az mount. Easy to move uop or down and left and right.

The eyepieces simply go into the focuser. The Larger the number written on the eyepiece the LESS the magnification.

Take the scope outside during the daytime and practice focusing on a distant object using the eyepiece with the largest number.

The manual WILL NOT tell you how to find those small dim objects in the sky. It's just assembly instructions.It does not tell you how to become an amateur astronomer.

Locate a local Astronomy club and seek advice from the members, who will be glad to help you with your telescope.

Buy these two books available on

Turn Left at Orion



Read my tips on my profile page, and read this:

Aug 11, 2010 | Cstar Optics UB-3700 (700 x 70mm)...

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I picked up a cstar telescope model 76700 and I need a parts list and a manual I hope ypu can help me

This is considered a toy telescope. You will not find a manual or replacement parts.

Aug 13, 2009 | Cstar Optics Optics

1 Answer

Cstar 700 reflector telescope bought a floor model at a discount. Need tips on assembly

You won't find a manual for those small telescopes. However Meade maintains a site with their manuals. Find one similar to your scope under REFLECTORS and download the manual.

Jun 30, 2009 | Cstar Optics Optics

1 Answer

Looking for a owners manual

You can download it for free from cstar. Scroll down the page until you get to the UB4500 and click on the picture of your scope.
here's the link.

Please don't forget to rate my response. Thanks!

May 10, 2009 | Optics

1 Answer

Broken parts/EQ-3700

Most of these parts can be found at a well stocked hardware store-- and you can make a micro adjustment rod.

Apr 06, 2009 | Optics

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