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Celestron C90 Mak

Celestron C90 Mak
alaScore 82

11 reviews

Jul, 2018

alaTest has collected and analyzed 11 reviews of Celestron C90 Mak. The average rating for this product is 4.1/5, compared to an average rating of 4.2/5 for other Binoculars for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Binoculars the Celestron C90 Mak is awarded an overall alaScore™ of 82/100 = Very good quality.

Review analysis

(Based on 11 reviews)

User Reviews  


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Consumer review ( review summary for Celestron C90 Mak


alaTest has collected and analyzed 1 user review of Celestron C90 Mak from The average user rating for this product is 1.0/5, compared to an average user rating of 4.1/5 for other Binoculars on

0% of the reviews on give this product a positive rating.

Jul, 2018

Consumer review (

Spotting Scope or Portable Telescope?


WOW what a great Find!

Field of View Compact and lite Easy to use

Needs 2 stage Focus Needs a more protective (rubber)rim Needs a Zoom or second Eyepeice

Jul, 2005

Consumer review (

Mobility and Versatility- the Celestron C90


NOTE: This Opinion is being posted both under the C90 and under the G3, since both are versions of the exact same optical device. If there were a mechanism for cross-posting without doing this, I would have rather taken that approach. More general...

Small size, durability, light weight, ease of use

limiting f/ratio, limited to .96 devices

Jul, 2000

Product Specifications

The Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage. This C90 Mak has excellent optics with razor sharp images over a wide field. The C90 Mak features an internal flip mirror design which allows the user to view celestial objects at a 90 degree angle and also corrects the image orientation to view land objects at a 45 degree angle. The full-featured C90 MAK is also rubber covered and completely waterproof. This model features durable black rubber armor for protection, a flip up lens cap for safety, and it comes complete inside its own soft sided carrying case.


Color of product:Black

Dimensions & Weight



Waterproof: No




Manufacturer:Celestron International
Model:C90 Mak
Product Line:Celestron

Optical System

Objective Lens Diameter:90mm
Product Type:Telescope
Telescope Class:Maksutov-Cassegrain catadioptrics

Service & Support

Type:Limited lifetime warranty

Technical Details

Objective diameter:3.54

Weight & Dimensions