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Grovers Optics & Photo. 216 High Street. Northallerton

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Grovers Toymaster 216 High Street, Northallerton DL78LW

Specials

A family business

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 There are 118 products.

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Showing 1 - 30 of 118 items
  • From £ 199.00 Delivery In 1-5 Days* Tax included

    Choose To Extend Your warranty for only £49.00 With Celestron StarPointer & 25mm EyePiece

    From £ 199.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 499.00 Delivery In 1-5 Days* Tax included

    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.

    From £ 499.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 1,975.00 Before £ 1,995.00 Delivery In 1-5 Days* Tax included
    Sale

    Advanced VX 8” EdgeHD: truly the ultimate entry-level astroimaging package. This package combines the groundbreaking new Advanced VX mount with Celestron’s best optics, the EdgeHD optical system. This setup offers the astroimager maximum versatility – allowing up to 3 different f-stop configurations. Choose To Extend Your warranty for only £99.00

    From £ 1,975.00 Before £ 1,995.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 2,750.00 Delivery In 1-5 Days* Tax included

    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 A reducer will widen & brighten your...

    From £ 2,750.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 1,519.00 1-5 Days Delivery* Tax included

    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 A reducer will widen & brighten your field of view. See more...

    From £ 1,519.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • From £ 1,675.00 Before £ 1,695.00 Delivery In 1-5 Days* Tax included
    Sale

    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 A reducer will widen & brighten your field of view. Seeing more...

    From £ 1,675.00 Before £ 1,695.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 2,180.00 1-5 Days Delivery* Tax included

    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 A reducer will widen & brighten your...

    From £ 2,180.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • £ 340.00 Delivery In 1-5 Days* Tax included

    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

    £ 340.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 569.00 Delivery In 1-5 Days* Tax included

    Control your telescope via integrated WiFi using the free Celestron SkyPortal app for iPhone, iPad, and Android devices The Astro Fi 125mm Schmidt-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

    £ 569.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 2,070.00 Delivery In 1-5 Days* Tax included

    Important: This new & unopened OTA comes with a CGE/Losmandy dovetail & a Vixen/Advanced dovetail for you to fit. You are getting a free adv/Vixen dovetail.

    £ 2,070.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 2,070.00 Delivery In 1-5 Days* Tax included

    Warranty: 2 years

    £ 2,070.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 6,699.00 Delivery In 1-5 Days* Tax included

    £ 6,699.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 649.00 Delivery In 1-5 Days* Tax included

    Top quality C6 Optical Tube Assembly without finderscope or visual back, diagonal or eyepieces. Perfect if you have damaged a telescope's optical tube. This OTA does not come with a mount or tripod.

    £ 649.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 685.00 Delivery In 1-5 Days* Tax included

    Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available individually for use with your favorite mount. Each OTA is made to the same exacting standards as those used on all our high quality telescopes.

    £ 685.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 899.00 Delivery In 1-5 Days* Tax included

    C8 Optical Tube Assembly as used in the best selling Celestron Nexstar 8se. Sold without eyepiece, visual back or finderscope. Ideal replacing a damaged telescope or want to upgrade to the magic 8 inch aperture. The tripod socket on this OTA makes it ideal for terrestrial use as well.

    £ 899.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,075.00 Delivery In 1-5 Days* Tax included

    Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available individually for use with your favorite mount. Each OTA is made to the same exacting standards as those used on all our high quality telescopes.

    £ 1,075.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,075.00 1-5 Days Delivery* Tax included

    Important: This new & unopened OTA will come fitted with an adv/Vixen dovetail & a CGE/Losmandy dovetail for you to fit. This is saving you a lot of money & you get a spare dovetail!

    £ 1,075.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • From £ 1,365.00 Delivery In 1-5 Days* Tax included

    Importantly, a lens hood (right) will shield your view from stray light & dew fall.

    From £ 1,365.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 1,365.00 Delivery In 1-5 Days* Tax included

    Warranty: 2 years Importantly, a lens hood (right) will shield your view from stray light & dew fall.

    From £ 1,365.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 5,129.00 Delivery In 1-5 Days* Tax included

    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 below a review for Celestron in BBC Sky at Night...

    £ 5,129.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 3,989.00 1-5 Days Delivery* Tax included

    11" Schmidt-Cassegrain Optical Tube Assembly 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 center alignment objects See below a review for Celestron in BBC Sky at Night magazine. ...

    £ 3,989.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • £ 3,229.00 Delivery In 1-5 Days* Tax included

    CGEM II 800 HD combines Celestron's newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. See below a review for Celestron in BBC Sky at Night magazine.  A very positive 4.4 out of 5*  for the CGEM II Computerised EQ mount.

    £ 3,229.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 2,897.00 Delivery In 1-5 Days* Tax included

    8" Schmidt-Cassegrain optical tube assembly Celestron's premium StarBright XLT coatings 2032 mm focal length (f/10)​ Includes large CGE style dovetail mounting bar See below a review for Celestron in BBC Sky at Night magazine.  A very positive 4.4 out of 5*  for the CGEM II Computerised EQ mount.

    £ 2,897.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 3,989.00 Delivery In 1-5 Days* Tax included

    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 below a review for Celestron in BBC Sky at Night magazine.  A very positive 4.4 out of 5*  for the...

    £ 3,989.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 3,254.00 Delivery In 1-5 Days* Tax included

    9.25" Schmidt-Cassegrain Optical Tube Assembly Celestron's premium StarBright XLT coatings 2350 mm focal length (f/10) 25 mm eyepiece included (94x) See below a review for Celestron in BBC Sky at Night magazine.  A very positive 4.4 out of 5*  for the CGEM II Computerised EQ mount.

    £ 3,254.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 5,463.00 1-5 Days Delivery* Tax included

    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

    £ 5,463.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • £ 4,299.00 1-5 Days Delivery* Tax included

    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

    £ 4,299.00 Tax included
    1-5 Days UK Delivery*
    1-5 Days Delivery*
  • £ 3,345.00 Delivery In 1-5 Days* Tax included

    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

    £ 3,345.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 3,063.00 Delivery In 1-5 Days* Tax included

    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

    £ 3,063.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 4,459.00 Delivery In 1-5 Days* Tax included

    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

    £ 4,459.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
Showing 1 - 30 of 118 items