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Celestron C90 MAK Spotting Scope

Includes Free
Value $7.89
B&H # CEC90M Mfr # 52268
In Stock
Free Expedited Shipping
You Pay: $169.95
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 29 reviews)

    Ratings Distribution

    • 5 Stars

       

      (16)

    • 4 Stars

       

      (12)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    96%

    of respondents would recommend this to a friend.

    Pros

    • Strong magnification (15)
    • Bright eyepiece (10)
    • Portable (4)
    • Sensitivity controls (4)

    Cons

    • Heavy (3)
    • Poorly illuminated (3)

    Best Uses

    • Astronomy (16)
    • Shooting (11)
    • Bright conditions (9)
      • Reviewer Profile:
      • Casual/ recreational (25)
      • Was this a gift?:
      • No (25), Yes (3)

    Most Liked Positive Review

     

    Good for the price

    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...Read complete review

    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 .

    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 29 customers

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    Displaying reviews 1-20

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    4.0

    Seems like a good all around scope.

    By Cityscape

    from NYC

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Bright Eyepiece
    • Strong Magnification

    Cons

      Best Uses

      • Bright Conditions
      • Terrestrial
      • Urban

      Comments about Celestron C90 MAK Spotting Scope:

      In fairness, I don't know too much about scopes, but the image is pretty clear, and it's easy to focus. The scope seems well made.

      • Was this a gift?:
      • No

      Share this review

      (1 of 1 customers found this review helpful)

       
      5.0

      Great Scope!

      By Ken

      from Sebastian, Fl

      Comments about Celestron C90 MAK Spotting Scope:

      Have not had many chances to use the scope (rain), but the two times out were better than expected.

      Share this review

      (1 of 2 customers found this review helpful)

       
      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

          (4 of 4 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

                Share this review

                 
                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

                Share this review

                (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

                  Share this review

                  (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

                  Share this review

                  (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.

                  Share this review

                  (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

                  Share this review

                  (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

                        Share this review

                        (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

                            Share this review

                            (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

                                Share this review

                                (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

                                      Share this review

                                      (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

                                      Share this review

                                      (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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