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Celestron C90 MAK Spotting Scope

Includes Free
Value $7.89
B&H # CEC90M Mfr # 52268
You Pay: $191.92
Product Highlights
  • Angled Viewing
  • Multicoated 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 and 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 appropriate 1.25" astronomy ocular.

The C90 comes with an erect image 8x21 finderscope that provides a wider FOV to aid the viewer in locating subjects and targets easily. The finderscope mounts conveniently to the side of the C90's OTA and it 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 for astrophotography or digiscoping applications.

Performance Details
  • Multicoated optics
  • Focal Length : 1250 mm, f/13.89
  • 32 mm 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
Magnification 39x
Objective Lens Diameter 90 mm
Field of View 68.0' @ 1000 yd / 20.73 m @ 1000 m
Minimum Focus Distance 15.0' / 4.57 m
Exit Pupil Diameter 2.3 mm
Eye Relief 20 mm
Weatherproofing Not specified by manufacturer
Dimensions Length: 16.0" / 41 cm (with diagonal and eyepiece)
Weight 5.0 lb / 2.3 kg
Celestron C90 MAK Spotting Scope
  • Nylon Backpack
  • Objective Cap
  • Limited Lifetime Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    CelestronC90 MAK Spotting Scope
     
    4.5

    (based on 27 reviews)

    Ratings Distribution

    • 5 Stars

       

      (15)

    • 4 Stars

       

      (11)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    96%

    of respondents would recommend this to a friend.

    Pros

    • Strong magnification (14)
    • Bright eyepiece (9)
    • Portable (4)
    • Sensitivity controls (4)

    Cons

    • Heavy (3)
    • Poorly illuminated (3)

    Best Uses

    • Astronomy (16)
    • Shooting (11)
    • Bright conditions (8)
      • Reviewer Profile:
      • Casual/ recreational (24)
      • Was this a gift?:
      • No (24), Yes (3)

    Most Liked Positive Review

     

    Excellent for the Price

    Excellent spotting scope for general terrestrial observations. Brings the moon in nicely as well. Have tried digiscoping using a Nikon DSLR. Expect heavy vignetting if using a full frame camera. Reasonable results but...Read complete review

    Excellent spotting scope for general terrestrial observations. Brings the moon in nicely as well. Have tried digiscoping using a Nikon DSLR. Expect heavy vignetting if using a full frame camera. Reasonable results but rock solid tripod is a must. Super light weight and easy to transport with the included back pack. Really can't beat the price.

    VS

    Most Liked Negative Review

     

    Solid scope but not good for astronomy

    I bought this scope a few months ago as my first astronomy telescope and I'm slightly disappointed. It's great for planets and the moon at high power but views of anything other than that...Read complete review

    I bought this scope a few months ago as my first astronomy telescope and I'm slightly disappointed. It's great for planets and the moon at high power but views of anything other than that are dim and underwhelming. The long focal length and high F ratio mean that the field of view is very narrow, the magnification very high and the amount of light that reaches your eye is faint. The lowest possible magnification for this scope is about 40x which is frustratingly high. More magnification is definitely not better (for astronomy anyway). Objects are dim and float out of view very quickly at 40x. However, It is very solidly built, images of the moon or planets are crisp and clear and it performs well at higher magnifications. It would make a decent long-range spotting scope, though it is pretty heavy.

    Reviewed by 27 customers

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    5.0

    Magnífico

    By Marco

    from México, Estado de México

    About Me Professional Guide

    Verified Buyer

    Pros

    • Bright Eyepiece
    • Sensitivity Controls
    • Strong Magnification

    Cons

      Best Uses

        Comments about Celestron C90 MAK Spotting Scope:

        Lo utilicé para distancias de 1,000 a 2000 mts. con ocular de 32mm...nitidez absoluta

        • Was this a gift?:
        • No

        Share this review

        (2 of 2 customers found this review helpful)

         
        5.0

        Good for the price

        By Rusty

        from N.S.W. Australia

        About Me Casual/ Recreational

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Celestron C90 MAK Spotting Scope:

              I was after a terrestrial telescope with good magnification and good optics for daytime observations .I've attached a photo , the cow in the photo is 2 miles or 3.1 kilometres away . Pretty happy with the results .

              • Was this a gift?:
              • No

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              4.0

              Well built and versatile

              By Mark S

              from Tucson, AZ

              About Me Casual/ Recreational

              Verified Buyer

              Pros

              • Strong Magnification

              Cons

              • Heavy

              Best Uses

              • Astronomy

              Comments about Celestron C90 MAK Spotting Scope:

              Purchased for astronomy and long distance birding. The build quality of the optical tube feels excellent. It was heavier than I expected.

              My Slik 330 EZ tripod head does not handle the weight very well; particularly when tipping up for a higher view. Interestingly, the head works much better in "vertical position" with the head tipped forward and the camera platform unlocked. The scope balances and stays where it is placed. It works well for now, but I would not recommend it as a long term solution.

              The rubber eyeguards on both finder scope and eyepiece were slightly deformed, but usable. The eyepiece is mediocre with lots of internal reflection. The finder is adequate, but can be a bit challenging to use if it is not raised near eye level. Alignment of the finder was easy and there is ample room in the included backpack to store the scope with the find attached (though care must be taken not to grab the bag in a manner to not apply any torque to the plastic finder arm).

              I purchased the C90 along with the Celestron 1.25 star diagonal. This makes it more suitable for astronomy than the included diagonal. The find scope becomes even more difficult to use for this purpose; particularly near zenith.

              The scope is useful for long distance terrestrial observing. The maximum true field of view is approximately 1.3 degrees at 39x with the included eyepiece. This limits it's usefulness for shorter distances, but having the finder helps center on targets faster than panning around until the target appears in the eyepiece.

              • Was this a gift?:
              • No

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              (1 of 1 customers found this review helpful)

               
              5.0

              Great deal for my pupose

              By Shooty Matt

              from Upstate NY

              About Me Casual/ Recreational

              Verified Buyer

              Pros

              • Bright Eyepiece
              • Strong Magnification

              Cons

                Best Uses

                • Shooting

                Comments about Celestron C90 MAK Spotting Scope:

                I needed an inexpensive spotting scope for rifle practice. I tried both Celestron and Barska zoom spotting scopes and found both wanting.

                Then I realized a 90mm MAK telescope with a 17mm eyepiece gives me a mag of around 75x, perfect for eyeballing targets at 100 yards. (I already had a still photo tripod.)

                The set up, for my use, is fantastic. Clear, sharp, huge exit pupil, wide field of view. Tremendous.

                • Was this a gift?:
                • No

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                (2 of 2 customers found this review helpful)

                 
                5.0

                Excellent Scope!

                By twantrd

                from USA

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Good Price Point
                • Portable
                • Sturdy construction

                Cons

                • Might Be Heavy For Some

                Best Uses

                • Bright Conditions
                • Shooting

                Comments about Celestron C90 MAK Spotting Scope:

                Used it a variety of times, watching wildlife, with the 32mm plossl eyepiece that it came with and was shocked at how clear and crisp the image was. I've heard nothing but great reviews with the new C90 and took a chance at buying it and I would recommend it. I don't use for star gazing so I can't comment on that.

                • Was this a gift?:
                • No

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                (3 of 3 customers found this review helpful)

                 
                5.0

                Great buy, forget the bad reviews

                By Alonso P

                from San Antonio, TX

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Solid construction
                • Strong Magnification

                Cons

                • Heavy

                Best Uses

                • Astronomy
                • Photography

                Comments about Celestron C90 MAK Spotting Scope:

                First off, you need a solid tripod. Very easy to assemble no tools required. Sharp images and great depth of field, I will be using this scope to take pictures of nature, people and space. All I need is an adapter for the focuser and the camcorder. It's a bit heavy, that would be my only complaint.

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                (2 of 2 customers found this review helpful)

                 
                5.0

                Great little scope!

                By gsoul

                from Desoto, Tx

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Compact design
                • Good Eyepiece
                • Sharp Images
                • Strong Magnification

                Cons

                • Marginal Finderscope

                Best Uses

                • Astronomy
                • Shooting

                Comments about Celestron C90 MAK Spotting Scope:

                I have truly enjoyed this scope! I got great views of Jupiter, Saturn, the Orion Nebula and of course the moon. The finderscope was a little tricky but once I got it aligned it performed ok. I really don't have anything negative to say about this scope, it performs well for a small aperture scope. You will not be disappointed with this scope, as long you are familiar with the limitations of a 90mm aperture scope.

                • Was this a gift?:
                • No

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                (2 of 2 customers found this review helpful)

                 
                5.0

                Outstanding

                By picsguy

                from Ohio

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Bright Eyepiece
                • Sensitivity Controls
                • Strong Magnification

                Cons

                  Best Uses

                  • Astronomy
                  • Shooting

                  Comments about Celestron C90 MAK Spotting Scope:

                  I use it mostly for terrestrial viewing, on a video tripod, with a couple eyepieces. Terrific sharpness and brightness. I just don't see how you could beat it for the price. There's really nothing negative.

                  • Was this a gift?:
                  • No

                  Share this review

                  (2 of 2 customers found this review helpful)

                   
                  5.0

                  Great scope!

                  By Erik

                  from New Jersey

                  About Me Casual/ Recreational

                  Verified Buyer

                  Pros

                    Cons

                      Best Uses

                      • Astronomy

                      Comments about Celestron C90 MAK Spotting Scope:

                      This is a terrific scope for either terrestrial or astronomy. A couple of considerations: 1) the finder scope it comes with is tough to use if you have glasses and has a pretty small field of view. Also, it doesn't come with dust caps? That said, it is simple to align with the main scope. 2) If you're using the scope for mainly astronomy I would invest in a 90 degree diagonal specifically for astronomy rather than the supplied 45 degree. 3) no matter what application you're using it for, put it on a good solid mount. For astronomy I have an orion skyview pro (cg-5) which is great for it. Absolutely rock solid vibration dampening. The scope weighs about 5 lbs so I would look for something with a load rating at least twice that. If you're doing terrestrial you'll need a very solid tripod there as well. Bottom line: The scope itself is a steal for what you pay. It feels heavy and serious in your hands and the quality of the optics is superb. The accessories it comes with will need some tweaking or replacing. A pleasant surprise was the 32 degree eyepiece it comes with. Again, I would have liked some dust caps! But it's still not bad for an included eyepiece. You can change eyepieces on it too. So if you already have a collection of 1.25's you can use them. Just bear in mind that the scope only gathers so much light and the focal length is pretty long so a short focal length eyepiece will give a pretty dark view. Other than that, get this scope before they stop making it!

                      • Was this a gift?:
                      • No

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                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Portable

                      By AT Hiker

                      from Alabama

                      About Me Casual/ Recreational

                      Verified Buyer

                      Pros

                      • Good value
                      • Interchangeable Eyepieces
                      • Portable

                      Cons

                        Best Uses

                        • Bright Conditions
                        • Casual Astronomy
                        • Shooting

                        Comments about Celestron C90 MAK Spotting Scope:

                        Needed a lightweight, portable scope for use at my cabin to view wildlife and night sky. I have about 10 interchangeable eyepieces from my Mead telescope. I like the ability to change eyepieces.

                        • Was this a gift?:
                        • No

                        Share this review

                        (2 of 2 customers found this review helpful)

                         
                        5.0

                        Great spotting scope!

                        By Wade the telescope man

                        from Tucson, AZ

                        About Me Professional Guide

                        Verified Buyer

                        Pros

                        • Lightweight

                        Cons

                          Best Uses

                          • Astronomy

                          Comments about Celestron C90 MAK Spotting Scope:

                          I am using this scope with a CCD camera as a guide scope in a large telescope project. The focal length is excellent for a 1/3" CCD, and the image is uniform across the field. The size and convenient focus adjustment make this ideal for our application.

                          • Was this a gift?:
                          • No

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                          (2 of 2 customers found this review helpful)

                           
                          4.0

                          Great Value.....

                          By Francis on Falcon View

                          from Colorado

                          About Me Casual/ Recreational

                          Verified Buyer

                          Pros

                          • Strong Magnification

                          Cons

                            Best Uses

                            • Bright Conditions
                            • Shooting
                            • Viewing wildlife

                            Comments about Celestron C90 MAK Spotting Scope:

                            Great value and good optics. I use it to view our mountains, birds, wildlife, and the moon.

                            • Was this a gift?:
                            • Yes

                            Share this review

                            (1 of 1 customers found this review helpful)

                             
                            4.0

                            Shooting to the stars

                            By Hawkwatcher

                            from Yonkers,NY.

                            About Me Casual/ Recreational

                            Verified Buyer

                            Pros

                            • Good range

                            Cons

                            • The finderscope not easy

                            Best Uses

                            • Astronomy
                            • Birdwatching

                            Comments about Celestron C90 MAK Spotting Scope:

                            This is my first experience at all with any scope. This seems to do the job, I research for weeks and found this telescope from Celestron to fit my early
                            needs, the clerk was very helpful to made my decision.
                            As an added bonus, I can take very nice pictures also.

                            • Was this a gift?:
                            • No

                            Share this review

                            (2 of 2 customers found this review helpful)

                             
                            5.0

                            Great scope

                            By jrnichol

                            from Mason, MI

                            About Me Casual/ Recreational

                            Verified Buyer

                            Pros

                            • Bright Eyepiece
                            • Sensitivity Controls
                            • Strong Magnification

                            Cons

                              Best Uses

                              • Astronomy
                              • Low Visibility

                              Comments about Celestron C90 MAK Spotting Scope:

                              This scope is superb for low-light wildlife viewing and stars. Had one 30 years ago and gave it away. The newer version has better ocular and much better focusing. You will need a sturdier than average tripod to minimize vibrations.

                              • Was this a gift?:
                              • No

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                              (2 of 2 customers found this review helpful)

                               
                              4.0

                              Excellent for the Price

                              By Fritchit

                              from MD

                              About Me Casual/ Recreational

                              Verified Buyer

                              Pros

                                Cons

                                  Best Uses

                                  • Bright Conditions

                                  Comments about Celestron C90 MAK Spotting Scope:

                                  Excellent spotting scope for general terrestrial observations. Brings the moon in nicely as well. Have tried digiscoping using a Nikon DSLR. Expect heavy vignetting if using a full frame camera. Reasonable results but rock solid tripod is a must. Super light weight and easy to transport with the included back pack. Really can't beat the price.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                  (2 of 2 customers found this review helpful)

                                   
                                  5.0

                                  Good scope

                                  By Omer

                                  from Ankara, Turkey

                                  About Me Casual/ Recreational

                                  Verified Buyer

                                  Pros

                                  • Sensitivity Controls

                                  Cons

                                    Best Uses

                                    • Astronomy
                                    • Bright Conditions

                                    Comments about Celestron C90 MAK Spotting Scope:

                                    I am very satisfied with the image quality and handling of the scope, although the eyepiece that comes with it is rather weak in magnification and is not that easy to view with.

                                    • Was this a gift?:
                                    • No

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                                    (2 of 2 customers found this review helpful)

                                     
                                    4.0

                                    Excellent value, compact and portable

                                    By range_monkey

                                    from Southeast Texas

                                    About Me Casual/ Recreational

                                    Verified Buyer

                                    Pros

                                    • Bright Eyepiece
                                    • Eypiece selection
                                    • Strong Magnification

                                    Cons

                                    • Tad bulky for my purpose

                                    Best Uses

                                    • Astronomy
                                    • Bright Conditions
                                    • Shooting

                                    Comments about Celestron C90 MAK Spotting Scope:

                                    I plan to use the C90 MAK scope primarily as a spotting scope for long range rifle shooting. I'm hoping it will allow me to score targets at 300 yards but I don't really expect it to perform much beyond that distance.The lens that came with the scope is crystal clear, the little sighting scope is very useful for getting pointed in the right direction. The ability to change lens is fantastic and I also bought a 8-24 zoom lens for use at the rifle range. The included 32mm lens gets in the ballpark of 40x magnification, more than enough for casual observation of birds or something like the moon. The 8-24 zoom lens gets me about 50x-150x magnification. From about 100 yards away I can clearly read the brand and number on a golf ball sitting in the grass.The downside of the zoom is it's hard to focus at maximum zoom and the viewable image is a little dim. There are probably more expensive zoom lenses that would perform better but for only [$] it's great.

                                    • Was this a gift?:
                                    • No

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                                    (2 of 2 customers found this review helpful)

                                     
                                    5.0

                                    Very good scope!

                                    By D.P

                                    from US

                                    About Me Casual/ Recreational

                                    Verified Buyer

                                    Pros

                                    • Bright Eyepiece
                                    • Not expensive

                                    Cons

                                    • Made in china print

                                    Best Uses

                                    • Astronomy
                                    • Bird Watching
                                    • Free movies neighbor TV
                                    • Shooting

                                    Comments about Celestron C90 MAK Spotting Scope:

                                    I bought this scope for my 9yo Daughter, birthday.
                                    I'm very surprised by good quality (even it says "made in china").
                                    Most times, when I buy China "stuff" - I need to spend additional money to fix it. Not here.
                                    The view thru 32mm eyepiece is very clear and sharp.
                                    DO NOT BUY eyepiece shorted than 10mm, makes no sense. Buy 12mm good quality eyepiece , it will give you about 105x magnification - pefect for Moon and stars (for beginners).

                                    Good, heavy tripod with many metal parts is needed for this telescope.

                                    If you use this scope for range - checking .22 holes from 70 yards - no problemo, on any color target.

                                    • Was this a gift?:
                                    • Yes

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                                    (2 of 2 customers found this review helpful)

                                     
                                    5.0

                                    Great Little spotting scope.

                                    By Beginner tim

                                    from Lewisburg, Ohio

                                    About Me Casual/ Recreational

                                    Verified Buyer

                                    Pros

                                    • Fast and easy set up

                                    Cons

                                      Best Uses

                                      • Astronomy

                                      Comments about Celestron C90 MAK Spotting Scope:

                                      I used the scope to see Jupiter last week, with a gso 15mm eye piece I could see three of Jupiters moons and the rings on the planet.
                                      It's really very easy to set up, with my Celestron CG3 tripod for quick views. I'm ready to look at the moon in about ten minutes.
                                      It's going to be a little hard to add a better view finder, because of the screw holes.
                                      Over all I love the Celestron C90, and have bought one for my 25yr old son. He enjoys it also.

                                      • Was this a gift?:
                                      • No

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                                      (2 of 2 customers found this review helpful)

                                       
                                      5.0

                                      Fantastic value for the money

                                      By Dave

                                      from Australia

                                      About Me Avid Adventurer

                                      Verified Buyer

                                      Pros

                                      • Clear optics
                                      • Great Value for Money
                                      • Portable

                                      Cons

                                        Best Uses

                                        • Astronomy

                                        Comments about Celestron C90 MAK Spotting Scope:

                                        I bought this little scope for some planetary astro-photography and just a long focal length lens for my digital SLR camera. Although the clear nights have been few and far between since purchasing the scope I know I am going to get a lot of use for it. I plan to take it to South Africa on a safari next year as it is so portable.
                                        Well done Celestron (I also have a Celestron refractor telescope).

                                        • Was this a gift?:
                                        • No

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