- Brand Name: Celestron
- Model: C90 Mak
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The Maksutov-Cassegrain design of the C90 uses a combination of mirrors and lenses; this “folded” optical system has a focal length of 1250mm in a body only twelve inches long. The Maksutov design delivers high power views without a trace of the chromatic aberration, also called blue fringing, that can distort high power views in competing refractor style spotting scopes. At 40X magnification where some low cost spotting scopes start to seem fuzzy, the C90 is just getting started. The C90 uses the same 1.25 inch eyepieces used in astronomical telescopes. The standard equipment 32mm plossl eyepiece yields a magnification of 39X, but many other eyepieces can be used to vary the magnification.
The Celestron model 52268 seems very well built, with excellent multi-coatings visible on the front lens. The real beauty of this 90mm Maksutov spotting scope, however, is in the view it offers. When I use an optional 12.5mm eyepiece to look at Jupiter at 100X I can clearly see Jupiter’s major cloud bands as well as its four moons. When I look at the Moon and stars I can easily push the magnification to 200X with an optional 6mm eyepiece. When I look at birds in the backyard, I’m treated to delightful views full of vibrant color and crisp detail. With a close focus distance of only 15 feet, the detail and texture I see is simply amazing.
High magnification viewing requires a solid tripod, of course. Celestron’s Heavy Duty Altazimuth Tripod comes with slow motion controls to allow the scope to be pointed precisely, and I can clamp the dovetail base on my CG5 mount for astronomical use. The other drawback to high magnification viewing is a narrow field of view; high magnification makes it hard to follow moving targets like birds in flight. Overall the Celestron C90 Maksutov Spotting Scope does a fine job as a companion to good pair of binoculars. The C90 also doubles as a portable astronomy scope; it won’t show the flag on the Moon but it will show thousands of craters on the Moon as well as showing the moons of Jupiter and the rings of Saturn. --Jeff Phillips
Use it mostly at the range. Too big compared to other spotting scopes and required a few minutes of assembly time, but well worth it. Read morePublished 10 days ago by Michael
This is my first impression on item, item was packet very good, so no damage there.
It is smaller then i taught it would be, but it is kind of heavy which is good I think,... Read more
This is a great spotting scope for shooters!!! Able to see .22 caliber shots at 100 yards easily! Everyone at the range was jealous! Read morePublished 1 month ago by David Arnold
I bought this as a first telescope after doing some research and reading reviews. I cannot say enough good things about this as an entry level, and even intermediate... Read morePublished 1 month ago by ACS
Powerful little scope!
I am using this scope for astronomy. I was attracted to the idea of the scope being small and easily portable, yet, having strong enough power for... Read more
The scope has very good resolving capability out to 200 yards, however the contrast is really low. I knew that Maksutov-Cassegrain scopes had incredible resolving fidelity, but the... Read morePublished 2 months ago by Joe Burks