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Price

Price

  • £10.00 - £11,999.00

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Brand

Condition

Condition

Optical Design

Optical Design

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 86 item(s)

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  • A rival to the Celestron C6 OTA for performance, albeit not for wide-field imaging or for cool-down time. An excellent lunar and planetary telescope, both for imaging and observing

  • 150mm 6inch f18 Computerised GO-TO Maksutov-Cassegrain Telescope

    • Highest Practical Power (Potential): x450
    • Diameter of Primary Mirror: 150mm
    • Eyepieces Supplied (2”): 28mm
    • 2”/50.8mm Star Diagonal
    • EQ5 SynScanTM Computerised GOTO Equatorial Mount (Requires 12 volt DC Power Supply)
    • Built-in Polar Alignment Scope Holder
  • Sky-Watcher SkyMax 127...

    Price £529.00

    Sky-Watcher Skymax-127 (AZ) 127mm (5") f/1500 SynScan GO-TO Maksutov-Cassegrain Telescope. A larger version of the Skymax-102 providing a massive 55% more light-gathering power, and packing an even more powerful punch than its smaller cousin for medium-to-high-power work.

  • Celestron C8 XLT CGE OTA

    Price £1,309.00

    Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available individually for use with your favorite mount

  • Celestron Nexstar 5SE
    • On sale!

    Celestron Nexstar 5SE...

    Price £799.00

    The 5 SE features a precision optical system with 1,250 mm focal length f/10 standard with our premium StarBright XLT coatings and offers 56% more light gathering power than a 4se

  • Celestron StarSense...

    Price £699.00
    • 6” Schmidt-Cassegrain with StarBright XLT coatings and enough light gathering ability to view the best celestial objects
  • Celestron C8 8se Orange OTA

    Price £1,099.00

    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.

  • Perfect if you have damaged a Nexstar telescope's optical tube:
    SLT grey (Right), Astro-Fi black (Right), Evolution silver (Left) SE orange (Left)
    Construction & StarBright multi-coated optics are identical in all

    The dovetail position (in brackets) will alter the position of the focuser
    An EQ mounted focuser is different again

    Supplied without mount, tripod, finderscope, visual back, diagonal or eyepieces

  • Celestron C6 6se Orange OTA
    • New

    Perfect if you have damaged a Nexstar telescope's optical tube:
    SLT grey (Right), Astro-Fi black (Right), Evolution silver (Left) SE orange (Left)
    Construction & StarBright multi-coated optics are identical in all

    The dovetail position (in brackets) will alter the position of the focuser
    An EQ mounted focuser is different again

    Supplied without mount, tripod, finderscope, visual back, diagonal or eyepieces

  • You get what is seen in the image - no mount, finderscope or eyepiece

    Used - In VGC+ & the optics are clean. Can be mounted on a photo tripiod for terrestrial observation.

  • copy of Sky-Watcher SkyMax 102 AZ Pronto Cassegrain Grovers
    • On sale!

    102mm F/12.7 Alt-Azimuth Maksutov-Cassegrain Telescope
    Easy to use, this compact, but powerful telescope is ideal for the observation of double-stars, surface detail of the Moon & bright planets