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Optical Design

Optical Design

Refractors

refracting or refractor telescope is a type of optical telescope

that uses a lens as its objective to form an image

(also referred to a dioptric telescope)

 

Learn More About Refractors

Refractors Grovers Optics Northallerton

Refractors

15 products - next page link at the bottom

Showing 1-15 of 88 item(s)

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  • These traditional spyglasses would not look out of place in the hands of Nelson himself!  Features four extendable telescopic sections and magnification a powerful 10x-30x.  The zoom is operated by twisting a control ring made of copper.  Supplied with a soft zip-up case.

  • Traditional solid brass telescope

    • Objective Lens Diameter: 60mm
    • Magnification 20x-60x Zoom
    • Twist-Focus/Zoom controls
    • Brass Alt-Azimuth Arc Mount
    • Brass Chain Leg-Brace
    • Mahogany Tripod (Medium duty)
  • Essential accessories (not included) listed below include:

    Eyepiece & Filter Kit - 2 eyepieces & a 2x Barlow lens that allows SLR cameras to attach (accessory required). 3 Filters inc Moon Filter

    Red LED Torch - In astronomy we use red LED torches to keep our "night vision"

    Moon Filter - Our moon appears very bright. This filter reduces that & allows the craters to stand out more

  • Essential accessories (not included) listed below include:

    Eyepiece & Filter Kit - 2 eyepieces & a 2x Barlow lens that allows SLR cameras to attach (accessory required). 3 Filters inc Moon Filter

    Red LED Torch - In astronomy we use red LED torches to keep our "night vision"

    Moon Filter - Our moon appears very bright. This filter reduces that & allows the craters to stand out more

  • Suggested Accessories for this scope (not included) 

    Eyepiece & Filter Kit - 2 eyepieces & a 2x Barlow lens that allows SLR cameras to attach (accessory required). 3 Filters inc Moon Filter 

    Red LED Torch - In astronomy we use red LED torches to keep our "night vision" 

    Moon Filter - Our moon appears very bright. This filter reduces that & allows the craters to stand out more 

  • Sky-Watcher EvoStar-150, 150mm (6") f/1200 Achromatic Refractor Optical Tube Assembly. The Sky Watcher Evostar series are two-element air-spaced, multi-coated object achromatic refractors

  • Sky-Watcher Evostar 120

    Price £349.00

    An excellent white light solar refractor by adding some Baader Astrosolar over the front aperture. 120mm is easily enough for visibility of all Messier objects as well as good lunar and planetary detail.

  • The same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations

  • The new EVOSTAR DS-PRO Series ED Apochromatic refractors with the same quality and performance level as our now legendary Equinox series

  • The Sky-Watcher Esprit-80ED Professional Super APO Triplet Refractor OTA are instruments of the highest quality with optical performance

  • Sky-Watcher Mercury 607

    Price £79.95

    AZ 60mm f7 Achromatic Refractor Telescope. This affordable Sky-Watcher Mercury series of refractor telescopes allow you to take your first steps into the fascinating world of astronomy. Supplied with good levels of equipment for both astronomical and terrestrial observations.

  • Sky-Watcher Mercury 707

    Price £119.00

    With its larger 70mm multi-coated objective lens, it will provide more rewarding views of the Moon, stars, bright planets and other night sky objects

  • The Sky-watcher EVOSTAR series are two-element, air-spaced, multi-coated objective achromatic refractors. Manufactured to extremely high standards of optical and mechanical precision