FREE EU SHIPPING on €70+ orders
Lifetime Warranty See details
Visit our showrooms
The price is valid only for the online store and may differ from the prices in retail stores.

Schmidt-Cassegrain. Aperture: 280 mm. Focal length: 2800 mm

Catadioptric
Optical design
280
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
2800
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 27701
Brand Celestron
EAN 2400000043072
Optical design catadioptric
Optical scheme Schmidt–Cassegrain
Optics coating StarBright XLT
Description
Despite the long focal length of these telescopes, the OTA itself has a very short length, making the system a compact telescope which is extremely easy to transport. Light first hits an aspherically figured Schmidt corrector plate and is then thrown onto a spherical main mirror. This reflects the light back up, throwing it onto a secondary mirror which subsequently throws it back in the direction of main mirror. The light then passes through a central hole in the main mirror and into the focuser at the bottom of the OTA. Thus the system is closed and hence does not suffer from air turbulence which could degrade the image. Of course this also means that the system is optimally protected from dust. The Schmidt plate is multi-coated, ensuring bright images which do not suffer from stray light reflections.

This telescope provides a very good image, boasting high contrast and definition and provides a lot of pleasure when planetary observing. The Schmidt-Cassegrain design provides a good all-round system suitable for both observing and astrophotography and with an enormous range of optional accessories available. Using the bottom end of the OTA to look through means easy orientation. The system is also optimal for occasional terrestrial observing, e.g. birdwatching at close range. Celestron SC telescopes have an aperture ratio of around 1:10 which, so astrophotography is also very easily possible.

Main mirror focusing means a very large range of focus is made available, which allows virtually any common accessory to be used. Two pre-loaded ball bearings are used in the main mirror focus positioning mechanism in order to prevent 'mirror shift' - a typical problem when using simple bushings. The use of high quality materials such as CNC-milled aluminium components, cast steel and stainless steel guarantees extreme robustness with low weight. This means that a very heavy mount is unnecessary, not always the case for other telescope designs.

Features:

  • long focal length with short OTA
  • low weight aluminium OTA
  • high quality XLT multi-coating
  • closed system
  • pre-loaded ball bearings for low mirror shift main mirror focusing
Specifications
Product ID 27701
Brand Celestron
EAN 2400000043072
Optical design catadioptric
Optical scheme Schmidt–Cassegrain
Optics coating StarBright XLT
Primary mirror diameter (aperture), mm 280
Focal length, mm 2800
Highest practical power, x 560
Aperture ratio f/10
Eyepieces 40mm
Finderscope 8x50
Tripod steel
Tripod height (adjustable), mm adjustable
Mount alt-azimuth
GPS receiver integrated
User level professionals
Observed object deep-sky objects, planets of the Solar System
Reviews
Telescope accessory installation diagrams (.pdf) (13.12.2019)
Convenient diagrams that describe how to install additional accessories on refractors and catadioptric telescopes
Levenhuk Telescope Assembly Guide (14.12.2019)
Find out how to assemble a telescope on an example of the Levenhuk Skyline 90x900 EQ telescope
A quick guide for novice astronomers (16.12.2019)
This short guide will help you avoid typical mistakes and learn more about telescope and mounting types
A telescope: how to start observing (16.12.2019)
The basics of astronomical observations for beginners
Frequently Asked Questions – Telescopes (20.04.2020)
In this article we have gathered answers to some of the most frequently asked questions about telescopes
First Steps in Astronomy Made Easy! (18.05.2020)
You can actually perform observations from your balcony!
Beginner’s Short Guide to Telescopes (18.05.2020)
All about telescope sizes, types, magnification, and mounts
How to use a telescope (18.05.2020)
Learn how to set up and use the telescope properly
Astronomical observations in the city (18.05.2020)
Astronomy in light-polluted skies. Find out what you can observe in the city
Telescopes for children (19.05.2020)
Read an interesting comprehensive article on telescopes for little astronomers
Things you can see with a telescope based on its aperture (19.05.2020)
Celestial objects you can observe with telescopes of different apertures
What can you see with a telescope (19.05.2020)
Colored and vivid images of galaxies, planets and star clusters entrance everyone who is fascinated by boundless space
What is a refracting telescope? (20.05.2020)
Find an interesting review on the history of the changes to a refracting telescope
How to choose a telescope (20.05.2020)
To make the process of choosing a telescope easier, we will tell you about the characteristics of the most popular types of telescopes today
A short guide to refractor telescopes: choose your equipment wisely (20.05.2020)
Learn everything you need to know about refractor telescopes to make the right choice
Questions and Answers
Submit your question