Used Celestron C90 Mak Spotting Scope

SKU: U2402-RM-52268

  • Sale
  • $149.95
  • Regular price $289.95


Not Returnable Please note that used items are not returnable.

This is a trade-in in very good condition.  The optics are clean with just a tiny speck of dust on the meniscus that we can't remove.  The previous owner out a sticker on the tube, but otherwise the tube is in excellent condition.  

No boxes; this is in-store purchase only.  Includes:  

  • 9mm Plossl Eyepiece for 133x
  • 45° Erect Image Diagonal for terrestrial use
  • Padded backpack for travel


The little C90 is a portable powerhouse telescope and spotting scope ideal for road trips. For those looking for a step up from the all-in-one Travel Scope and Adventure Scope packages, this is the scope for you.

A great spotter scope for wildlife and mountain vistas, it also serves as a portable and capable night time telescope to observe the stars, nebula, and planets. The included image erect prism means the image you see in the scope is correctly oriented. For the best magnification, we recommend adding a Celestron 8-24mm zoom eyepiece, or X-Cel series eyepieces.

Note: Does not include a tripod. We recommend the Regal Premium Tripod.


  • Multi Coated Optics
  • Maksutov-Cassegrain Optical Design
  • Compact and Portable Design
  • Erect Image System for Terrestrial and Astronomical Use
  • Built-in T-Adapter threads for Ease of Adapting SLR Cameras
  • Comes with 12 mm Eyepiece, 45° Erect Image Diagonal 
  • Best paired with the Regal Premium Tripod

The Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage. This C90 Mak has excellent optics with razor sharp images over a wide field.

The built in t-adapter thread lets you convert the scope into a Telephoto lens for your DSLR camera with a 1200mm f/13.3 focal length. (Select the right t-ring for your camera model.)

Angular Field of View 1.3 degrees
Camera Adaptable Yes
Close Focus 15 ft (4.6 m)
Eyepiece 12mm Plössl (38x)
Eyepiece Eye Relief (mm) 20 mm
Optical Coatings Multi-Coated
Focal Length 1200mm
F/ratio 13.3