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Key Features
- Angled Viewing
- Multi-Coated Optics
- 45° Erect-Image Diagonal
- Erect-Image 8x21 Finderscope
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 as well as astronomy viewing.
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Is there an adapter to fit micro 4/3 cameras?
Is there an adapter to fit micro 4/3 cameras?
Yes , you will need # VIVT2M43
Date published: 2020-10-13
Could this be used for solar telescope if used ...
Could this be used for solar telescope if used with the proper filter(s)?
The Celestron C90 Maksutov Spotting Scope can be used as a solar telescope, but it must be fitted with the proper filter from a different solar filter manufacturer.
Date published: 2023-05-30
Does this scope come with a nylon backpack case?
Does this scope come with a nylon backpack case?
Yes, the C90 Mak Spotting Scope comes with a black nylon backpack.
Date published: 2019-03-15
Can the 45 prism be changed?
Can the 45 prism be changed?
The 45 degree erect image diagonal can be removed.
Date published: 2021-09-30
Can it be used as a finder scope on a large 10" ...
Can it be used as a finder scope on a large 10" telescope? How would one adjust it so the view coincides with the 10" telescope?
The Celestron C90 Mak Spotting Scope, is not made to be used as a "finder Scope", on a large 10
Inch telescope.
Date published: 2023-06-02
Can B&H staff recommend both a vixen style ...
Can B&H staff recommend both a vixen style dovetail plate and equatorial mount for this telescope? I'm intending to use it for astronomical observation, and other sites recommend the plate/mount conversion for use on a standard tripod, but I'm not sure which size will fit the C90. Many thanks.
They come with a dovetail :)
I'm not much of an EQ guy, but check out the smallest offering from Explore Scientific, I forgot what they call it.
Also the Celestron CG4 and the Orion Astroview.
Date published: 2020-12-27
is the eye piece upgradable/ can it be changed ...
is the eye piece upgradable/ can it be changed from the 39x magnification to a 60x magnification?
Yes, you can order a different focal length 1.25" eyepiece to change the magnification. To chose which eyepiece yo need, use the formula of FOCAL LENGTH OF YOUR TELESCOPE IN MM (1,250mm) divided by FOCAL LENGTH OF EYEPIECE IN MM = MAGINIFICATION. To find a size that would be exactly 60x may not be economical, however, you could use a common and economical 25mm eyepiece to get 50x, your telescope focal length 1,250mm / eyepiece focal length 25mm = 50x. There are several good videos on YOUTUBE on how to chose an eyepiece.
Date published: 2022-03-09
What solar filters will fit on this scope?
What solar filters will fit on this scope?
The Celestron C90 Mak Spotting Scope outside diameter is about 106mm so this Mr. Star Guy filter will fit: https://bhpho.to/3JtByDC
Date published: 2023-10-16