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Cassegrain

telescope design that combines a

spherical mirror with a lens in a

design that takes advantage of

all the surfaces being nearly

"spherically symmetrical"

 

Learn More About Cassegrain Telescopes

Cassegrain Grovers Optics Northallerton

Cassegrain

15 products - next page link at the bottom

Showing 1-15 of 96 item(s)

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  • NexStar Evolution 8” Edge HD with Star Sense - 60thAnniversary
    • New

    Limited edition NexStar Evolution 8 HD Telescope with Starsense 60th Anniversary Edition and Carbon Fibre optical tube finished in black Limited to only 600 worldwide

    Only two available

  • Extend Your Warranty To 2 Years For Only £49

    The lightweight and highly portable Sky-Watcher SKYMAX-102 (AZ-GTi), has been designed to be controlled wirelessly with your Smartphone or Tablet, using the free SynScan App for iOS or Android. The telescope can be used anywhere, without any reliance on other WiFi or mobile networks.

  • Celestron’s innovative NexStar Star Location Telescope (SLT) has been a customer favorite for years thanks to its unique combination of high quality optics, user-friendly computerized interface and a sturdy single fork arm mount. 

    See the "Astronomy Now" Review below

  • The highly portable Sky-Watcher SKYMAX-127 (AZ-GTi), has been designed to be controlled wirelessly with your Smartphone or Tablet, using the free SynScan App for iOS or Android. The AZ-GTi mounting, with it's built-in WiFi module, creates it’s very own Wi-Fi network, so the mount can be used anywhere, without any reliance on other WiFi or mobile networks.

  • Choose To Extend Your warranty for only £49.00

    Rechargeable power supplies are cheaper to use & a more reliable source of power. AA rechargeables can not be used but you can use alkaline or lithium - but are more expensive over time

    A lens hood will shield stray light & dew fall

  • Celestron CGX Equatorial...

    Price £3,359.00
    • Aluminum Optical Tube
    • Celestron's premium StarBright XLT coatings
    • 2350 mm focal length (f/10)
    • 25 mm eyepiece included (94x)
    • Visual back allows for use with 1.25" accessories
    • 6x30 finderscope to help accurately find objects
    • Includes dovetail rail compatible with CGE mount

    See Sky At Night 4.5 Star Review Below

  • Control your telescope via integrated WiFi using the free Celestron SkyPortal app for iPhone, iPad, and Android devices
    The Astro Fi 102mm Maksutov-Cassegrain with fully coated glass optics provides outstanding views the Moon and planets, as well as bright deep space objects beyond our Solar System.

    Read the critical product review & comparison below

  • Choose To Extend Your warranty for only £49.00

    Rechargeable power supplies are cheaper to use & a more reliable source of power. AA rechargeables can not be used but you can use alkaline or lithium - but are more expensive over time

    A lens hood will shield stray light & dew fall

  • Celestron CGX Equatorial...

    Price £5,455.00

    This telescope requires a power supply - & you should consider a higher specification unit for accessories such as dew heaters. You can choose a mains or a portable solution (right). Lithium batteries are more expensive but out perform the lead acid options.

    See Sky At Night 4.5 Star Review Below

  • Choose To Extend Your warranty for only £49.00

    A reducer will brighten your view, seeing more objects & the view is optimised for imaging (photography).

    A lens hood will shield stray light & dew fall.

  • Celestron Advanced VX 5"...

    Price £1,349.00

    Choose To Extend Your warranty for only £99.00

    Requires a power supply - & you should consider a higher specification unit for accessories such as dew heaters. You can choose a mains or a portable solution. Lithium batteries are more expensive but out perform the lead acid options

  • Celestron CGX-L 1100 SCT

    Price £5,695.00
    • 11" Schmidt-Cassegrain Optical Tube Assembly
    • Aluminum Optical Tube
    • Celestron's premium StarBright XLT coatings
    • 2800 mm focal length (f/10)
    • 40 mm eyepiece included (70x)
    • Visual back allows for use with 1.25" accessories 9x50 finderscope to help accurately find objects
  • Celestron CGX Equatorial 800

    Price £3,060.00

    This telescope requires a power supply - & you should consider a higher specification unit for accessories such as dew heaters. You can choose a mains or a portable solution (right). Lithium batteries are more expensive but out perform the lead acid options.

    See Sky At Night 4.5 Star Review Below

  • With XLT multi-coatings & protective case.

    Celestron's C5 is a 5" (127mm) aperture, 1250 mm f/10 Schmidt-Cassegrain optical system. Its optical excellence is the reason it was chosen by NASA for many space shuttle missions.