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Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope

Celestron C90 MAK Spotting Scope

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Your Price: CAD379.00
Retail Price:CAD389.00

Your Savings:CAD10.00(3%)

Generally Ships in 5-7 Business days
Part Number:52268

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Product Highlights

  • Angled Viewing
  • Multi-Coated Optics
  • 45° Erect-Image Diagonal
  • Erect-Image 8x21 Finderscope
  • 32mm Eyepiece - 39x Magnification
  • Standard Tripod Mount

The compact and highly portable C90 Mak Spotting Scope from Celestron is a powerful spotting scope with a Maksutov-Cassegrain optical path, a 32mm eyepiece, and an erect-image 45° diagonal that also corrects the view laterally. Because the finderscope and the diagonal both provide corrected images, the C90 is an excellent choice for terrestrial as well as astronomy viewing.

The 32mm Plossl eyepiece provides the user with a remarkable 39x magnification. Higher levels of magnification and wider fields of view can be experienced by substituting the included eyepiece with an appropriate 1.25" astronomy ocular.

The C90 comes with an erect image 8x21 finderscope that provides a wider field of view to aid the viewer in locating subjects and targets easily. The finderscope mounts conveniently to the side of the C90's optical tube assembly and removes easily for storage and transport.

The entire system is tripod adaptable—the C90 is equipped with a standard threaded tripod mount that's stable and secure. The rear of the C90 features built-in T-mount threads for mounting an SLR camera, using a user-supplied camera-specific T-ring, for astrophotography or digiscoping applications.

Performance Details

  • Multi-coated optics
  • Focal Length: 1250mm, f/13.89
  • 32mm 1.25" Plossl eyepiece: 39x magnification
  • Integral standard 1/4"-20 threaded tripod mount
  • Built-in T-adapter threading for use with SLR cameras
  • 8x21 erect-image finderscope for rapid subject location
  • Compact and portable Maksutov-Cassegrain optical design
  • 45° erect-image diagonal for terrestrial and astronomical applications


Optical Design


Aperture (mm)

90 mm (3.54 in)

Focal Length (mm)

1250 mm (49 in)

Focal Ratio



0 or 45 °

Eyepiece 1 (mm)

32 mm (1.26 in)

Magnification 1

39 x



Carrying Case

Backpack made of nylon

Highest Useful Magnification

213 x

Lowest Useful Magnification

13 x

Limiting Stellar Magnitude


Resolution (Rayleigh)

1.55 arc seconds

Resolution (Dawes)

1.29 arc seconds

Light Gathering Power (Compared to human eye)

165 x

Angular Field of View (deg)

1.3 °

Linear Field of View (@1000 yds)

68 ft (21 m)

Linear Field of View (@1000 m)

23 m (75 ft)

Eye Relief (mm)

20 mm (0.79 in)

Near Focus (Binoculars)

15 ft (4.57 m)

Optical Coatings


Optical Tube Length

16 in (406 mm)

Weight (lbs)

5 lbs (2.27 kg)

Camera Adaptable

Optional T-Adapter

Tripod Adaptable


In the Box
Celestron C90 MAK Spotting Scope
  • Nylon Backpack
  • Objective Cap
  • Limited Lifetime Warranty

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