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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope
Celestron C90 MAK Spotting Scope

Celestron C90 MAK Spotting Scope

by Celestron
SKU CEL-52268
$279.95 - $279.95
$279.95
$279.95 - $279.95
$279.95
Price Match Policy!
  • 90mm Maksutov-Cassegrain optical design
  • 1250mm focal length (f/13.9)
  • 39x magnification with included 32mm Plössl eyepiece
  • 20mm of eye relief for comfortable viewing with or without glasses
  • Close focuses to just 15 feet
  • Includes 8x21 finderscope, 45° diagonal, and backpack
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron C90 MAK Spotting Scope

    The Celestron C90 MAK Spotting Scope combines a 90mm objective lens with a 1250mm focal length to deliver high-magnification views for both terrestrial and astronomical observing. With the included 32mm Plössl eyepiece, it produces 39x magnification, resolving a 68-foot linear field of view at 1000 yards. The generous 20mm of eye relief ensures comfortable viewing for all users, while its ability to focus down to 15 feet makes it a versatile instrument for any distance.

    Maksutov-Cassegrain Optics: A 90mm, High-Contrast System

    The C90 MAK uses a catadioptric design, incorporating both mirrors and lenses to achieve a long 1250mm focal length in a compact body. This Maksutov-Cassegrain system produces bright, sharp images that are virtually free of the chromatic aberration (color fringing) common in refractor scopes. Because the secondary mirror is a reflective spot on the inside of the corrector lens, the scope maintains permanent collimation and delivers signature high-contrast views, capable of reaching a limiting stellar magnitude of 12.27 under ideal conditions.

    Dual-Purpose Design: From 15 ft Close Focus to the Planets

    Engineered for versatility, the C90 MAK transitions seamlessly from a terrestrial spotting scope to an astronomical telescope. Its ability to close-focus at just 15 feet is exceptional for detailed nature study or birdwatching. At the other extreme, its 90mm aperture and powerful optics provide enough light-gathering and magnification to resolve details on the Moon and planets. The included 45° erect image diagonal provides correctly oriented views, which is essential for daytime spotting.

    74 oz Portability with Finderscope and Backpack

    The entire C90 MAK package is designed for grab-and-go convenience. Weighing only 74 oz, the scope is easy to transport and set up. It includes an 8x21 finderscope to help you quickly locate targets in the sky or landscape. Everything fits neatly into the included heavy-duty nylon backpack, making it the perfect companion for a hike, a trip to the shooting range, or an impromptu session under the stars.

    • Tripod Ready: Features two 1/4-20 mounting holes and an 80mm CG-5 dovetail rail for secure attachment to a wide variety of photo tripods and astronomical mounts.
    • Water Resistant: The housing provides protection from the elements, so a sudden change in weather won't end your observing session.
    • Camera Adaptable: The C90 MAK is easily adapted for photography, allowing you to capture high-magnification images of distant subjects.

  • What can I see with the Celestron C90 MAK?

    For terrestrial use, the C90 is excellent for birdwatching, nature viewing, and target spotting, with a close focus of just 15 feet. For astronomy, its 90mm aperture resolves craters on the Moon, the rings of Saturn, the moons of Jupiter, and brighter deep-sky objects like the Orion Nebula (M42) and the Hercules Cluster (M13).

    Is the C90 MAK Spotting Scope good for someone who wears glasses?

    Yes. The included 32mm Plössl eyepiece has 20mm of eye relief. This is a generous distance that allows most eyeglass wearers to see the full 1.3° field of view without having to remove their glasses.

    How does the C90 MAK perform for birdwatching at 100 yards?

    The C90 MAK excels at this distance. With its 1250mm focal length and the 39x magnification of the included eyepiece, you will be able to resolve fine feather details and subtle coloration on small birds. Its sharp, high-contrast optics make it easy to distinguish between similar-looking species.

    Does the Celestron C90 MAK require collimation?

    No. One of the key advantages of the Maksutov-Cassegrain optical design is its stability. The secondary mirror is an integrated part of the corrector lens, meaning it holds its alignment and does not require the user to perform periodic collimation adjustments.

    Can I use other 1.25" eyepieces with the C90 MAK?

    Absolutely. The C90 MAK uses a standard 1.25" diagonal and focuser, making it compatible with the vast majority of 1.25" astronomical eyepieces. Using eyepieces with different focal lengths will allow you to achieve a wide range of magnifications for different targets.

    What kind of tripod is best for the C90 MAK Spotting Scope?

    A sturdy photo or video tripod is recommended to handle the scope's 74 oz weight and prevent vibrations at high magnification. The scope includes two standard 1/4-20 threaded holes and a CG-5 dovetail rail, offering flexible mounting options for both photographic tripods and astronomical mounts.

  • Objective Lens Diameter 90mm (3.54")
    Focal Length 1250mm (49")
    Magnification 39x (with included eyepiece)
    Included Eyepiece 32mm Plössl (1.25")
    Angular Field of View 1.3° (with included eyepiece)
    Linear Field of View 68 ft @ 1000 yds (20.7 m @ 1000 m)
    Close Focus 15 ft (4.6 m)
    Eye Relief 20mm (.78")
    Exit Pupil 2.3mm (0.1")
    Lens Coatings Multi-Coated
    Prism Glass BaK-4
    Limiting Stellar Magnitude 12.27 (Ideal)
    Twilight Factor 59.2
    Relative Brightness 5.3
    Environmental Protection Water Resistant
    Nitrogen Filled No
    Tripod Adaptable Yes (CG-5 Dovetail & 2x 1/4-20 threads)
    Camera Adaptable Yes
    Weight 74 oz (2,100 g)
    Dimensions 400mm x 260mm x 260mm (15.7" x 10.2" x 10.2")

    • C90 MAK Spotting Scope

      × 1

    • 32mm Plössl Eyepiece

      × 1

    • 45° Erect Image Diagonal

      × 1

    • 8x21 Erect Image Finderscope

      × 1

    • Objective Lens Cover

      × 1

    • Eyepiece Lens Cap

      × 1

    • Backpack Carrying Case

      × 1

  • Celestron Limited Lifetime Warranty