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 98 item(s)

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  • Our best-selling starter telescope with Go-To navigation.

    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

  • 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

  • Celestron Nexstar 6SE

    Price £999.00

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

    A lens hood will shield stray light & dew fall.

  • 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 Nexstar 8SE

    Price £1,450.00

    The NexStar 8 SE features Schmidt-Cassegrain 8" aperture optics with our premium StarBright XLT coatings and a powerful 2,032mm focal length and f/10 focal ratio.

  • Celestron Nexstar Evolution 8 HD StarSense
    • On sale!

    See StarSense helpful installation video below.

    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

  • 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 Nexstar Evolution 8
    • On sale!

    Leave your hand control behind and slew with a tap of your smartphone or tablet. Connect your device to NexStar Evolution’s built-in wireless network, and explore the universe with the Celestron mobile app for iOS and Android.

  • 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

  • The STARQUEST Series is a lightweight, ‘grab-and-go’ range combining proven high quality Sky-Watcher telescope optics with a newly designed and well-engineered equatorial mount. The mount features a high quality clutch system, precision 122 gear-tooth/360° gearing on both axes and excellent stability with a maximum payload of 3kg.
  • Celestron CGX-L 925 HD

    Price £5,455.00
    • 9.25" HD Optical Tube Assembly
    • CGX-L EQ Mount and Tripod
    • Celestron’s premium StarBright XLT coatings provide maximum light transmission
    • A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included
  • Grab-and-Go Telescope with Versatile Dual-Mode Alt-Azimuth/Equatorial Mount!! The compact but powerful SKYMAX-102 is ideal for the observation of double-stars, and the surface detail of the Moon and bright planets. Its high-resolution, long focal length optical system is multi-coated to maximise contrast and image sharpness. 

  • Celestron CGX Equatorial...

    Price £3,340.00

    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. Lithium batteries are more expensive but out perform the lead acid options.

    See Sky At Night 4.5 Star Review Below

  • Celestron Nexstar 102SLT Telescopes Grovers Optics
    • New

    Celestron Nexstar 102SLT

    Price £449.00

    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-L 1100 HD

    Price £6,690.00
    • 11" HD Optical Tube Assembly
    • CGX-L EQ Mount and Tripod
    • Celestron’s premium StarBright XLT coatings provide maximum light transmission

    See below for the Review from June 2017 of the UK astronomy magazine Astronomy Now

    Also below is the 4.5/5 Review in October 2017 issue of Sky at Night magazine