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Optical Tube Assemblies

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

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

More

Optical Tube Assemblies There are 30 products.

Showing 1 - 30 of 30 items
  • £ 1,719.00 Delivery In 1-5 Days* Tax included

    Sky-Watcher EvoStar-150ED, 150mm (6") f/1200 Apochromatic Refractors, due to their unobstructed, text-book like diffraction patterns, produce the sharpest, highest quality optical imaging available, bar-none, aperture for aperture, of any telescope optical system.

    £ 1,719.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 849.00 Available To Order Tax included

    A larger aperture version of the A80M, this OTA also offers an excellent first choice as a telescope but with higher light gathering power. Incl. Tube Rings, Dovetail Adapter, Flip Mirror, Dot Finder & Carry Handle  Shown with eyepieces sold separately

    £ 849.00 Tax included
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  • £ 2,699.00 Delivery In 1-5 Days* Tax included

    The AX103S is the latest in the Vixen refractor line and features a triplet ED objective lens and a rear field flattener lens. This f8.0 APO refractor benefits from a central ED lens in the objective lens array to reduce chromatic aberration and improve contrast. An optional focal reducer speeds up the scope to f5.6 making it a superior astro imaging...

    £ 2,699.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 5,199.00 Delivery In 1-5 Days* Tax included

    An ultra-fast refractor designed for discerning astrophotographers featuring a 5 element optical design. This f3.8 OTA is optimised for digital imaging.

    £ 5,199.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 249.00 Delivery In 1-5 Days* Tax included

    This lightweight 5” Newtonian is perfect for beginner astronomers because it features excellent light gathering with sharp images for its price and size. As well as being suitable for lunar and planetary observation, the scope is also perfect for targets such as star clusters, nebulae and galaxies.

    £ 249.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,199.00 Delivery In 1-5 Days* Tax included

    The remarkably fast 200mm f4 parabolic primary mirror of the Vixen R200SS Newtonian reflector gives extremely sharp images with no chromatic aberration. The use of state-of-the-art coating technology yields the ideal surface for the visual observer to enjoy wide views of deep sky objects.

    £ 1,199.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 399.00 Delivery In 1-5 Days* Tax included

    Vixen's new A62SS Refractor is a small, lightweight, grab and go telescope and comes complete with Dovetail Adapter and Crayford Focuser. The A62SS features a compact 62mm f8.4 (520mm focal length) and fully multi-coated 4-element objective lens.

    £ 399.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 499.00 Delivery In 1-5 Days* Tax included

    The new A81M Telescope is Vixen's latest achromatic refractor and features an 81 mm diameter objective lens, 910 mm focal length, and F/11.2 focal ratio. It comes complete with Tube Rings, Dovetail Adapter, Flip Mirror &  a Red Dot Finder.

    £ 499.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,110.00 Available To Order Tax included

    The Series 6000 Apochromatic Refractors are some of the best crafted refractors on the market. Each refractor is individually constructed and tested to ensure that they meet our highest standards, both optically and mechanically. .

    £ 1,110.00 Tax included
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  • £ 2,075.00 Available To Order Tax included

    The Series 6000 Apochromatic Refractors are some of the best crafted refractors on the market. Each refractor is individually constructed and tested to ensure that they meet our highest standards, both optically and mechanically. 

    £ 2,075.00 Tax included
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  • £ 3,185.00 Available To Order Tax included

    The Series 6000 Apochromatic Refractors are some of the best crafted refractors on the market.  Each refractor is individually constructed and tested to ensure that they meet our highest standards, both optically and mechanically.

    £ 3,185.00 Tax included
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  • £ 999.00 Delivery In 1-5 Days* Tax included

    The Vixen ED refractor range has been redesigned in order to allow the use of full frame DSLR camera sensors and yet are still compact and portable. The range is now designated SD (standing for Super extra low Dispersion glass) and includes the same 81mm, 103mm and 115mm variants.

    £ 999.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,649.00 Delivery In 1-5 Days* Tax included

    The Vixen ED refractor range has been redesigned in order to allow the use of full frame DSLR camera sensors and yet are still compact and portable. The range is now designated SD (standing for Super extra low Dispersion glass) and includes the same 81mm, 103mm and 115mm variants.

    £ 1,649.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 2,399.00 Delivery In 1-5 Days* Tax included

    The Vixen ED refractor range has been redesigned in order to allow the use of full frame DSLR camera sensors and yet are still compact and portable. The range is now designated SD (standing for Super extra low Dispersion glass) and includes the same 81mm, 103mm and 115mm variants.

    £ 2,399.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 315.00 Delivery In 1-5 Days* Tax included

    Apochromatic Refractors, due to their unobstructed, text-book like diffraction patterns, produce the sharpest, highest quality optical imaging available, bar-none, aperture for aperture, of any telescope optical system This high-end Evostar-72ED Apo features a doublet objective lens, with one Extra-Low Dispersion (ED) glass element. Top quality Schott...

    £ 315.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 849.00 Delivery In 1-5 Days* Tax included
    Sale!

    The new EVOSTAR DS-PRO Series ED Apochromatic refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations. With Focal Reducer Corrector

    £ 849.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 589.00 Delivery In 1-5 Days* Tax included
    Sale!

    Sky-Watcher STARTRAVEL telescopes are two-element, air-spaced achromatic refractors, that are well proven performers for ‘Rich-Field’ views of comets, star fields, star clusters, nebulae, bright galaxies & planets, the Moon and the Sun (with proper safety filtering!), as well as giving excellent daytime terrestrial views when used with an erecting...

    £ 589.00 Tax included
    1-5 Days UK Delivery*
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  • £ 285.00 Delivery In 1-5 Days* Tax included
    Sale!

    Ideal for Daytime Terrestrial Observations as well as Deep-Sky Astronomical Use.Sky-Watcher STARTRAVEL telescopes are two-element, air-spaced achromatic refractors, that are well proven performers for ‘Rich-Field’ views of comets, star fields, star clusters, nebulae, bright galaxies & planets, the Moon and the Sun, as well as giving excellent...

    £ 285.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 599.00 Delivery In 1-5 Days* Tax included

    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. They are truly outstanding, high-performance; high-resolution instruments manufactured to extremely high standards and mechanical precision.

    £ 599.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 1,149.00 Available To Order Tax included

    The Sky-Watcher Esprit-80ED Professional Super APO Triplet Refractor OTA are instruments of the highest quality with optical performance rivalling or exceeding similar telescopes of even the most famous high-end telescope brands.

    From £ 1,149.00 Tax included
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  • From £ 1,749.00 Available To Order Tax included

    The Sky-Watcher Esprit-100ED Professional Super APO Triplet Refractor OTA are instruments of the highest quality with optical performance rivalling or exceeding similar telescopes of even the most famous high-end telescope brands. Save £5 - Buy the Field Flattener with the telescope!

    From £ 1,749.00 Tax included
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  • £ 599.00 Out of stock Tax included

    £ 599.00 Tax included
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    Out of stock
  • £ 110.00 Delivery In 1-5 Days* Tax included

    £ 110.00 Tax included
    1-5 Days UK Delivery*
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  • £ 199.00 Delivery In 1-5 Days* Tax included

    An excellent rich-field low and medium power small refractor for casual astronomy. A very economic way to own a large aperture spotting scope, or as a guidescope on a larger instrument. Short enough to sit comfortably on Celestron and Meade SCTs, or mounted parallel on a dual saddle plate. 

    £ 199.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 315.00 Delivery In 1-5 Days* Tax included

    An excellent white light solar refractor by adding some Baader Astrosolar over the front aperture. An affordable instrument for schools to purchase for science project astronomical observing. 120mm is easily enough for visibility of all Messier objects as well as good lunar and planetary detail.

    £ 315.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 579.00 Delivery In 1-5 Days* Tax included

    The new EVOSTAR DS-PRO Series ED low dispersion refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series,making them superb instruments for both imaging and visual observations.

    £ 579.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 899.00 Delivery In 1-5 Days* Tax included

    The new EVOSTAR DS-PRO Series ED Apochromatic refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations. 

    £ 899.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • £ 1,349.00 Delivery In 1-5 Days* Tax included

    The new EVOSTAR DS-PRO Series ED Apochromatic refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations.

    £ 1,349.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 2,419.00 Delivery In 1-5 Days* Tax included

    F/7 SUPER APO TRIPLET REFRACTOR 2” Dielectric Star Diagonal, 28mm 2” LET Eyepiece, 9x50 Right-Angled Erect Image Finderscope, Tube Rings and Dovetail Mounting Bar 

    From £ 2,419.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
  • From £ 4,699.00 Delivery In 1-5 Days* Tax included

    F/7 SUPER APO TRIPLET REFRACTOR  2” Dielectric Star Diagonal, 28mm 2” LET Eyepiece, 9x50 Right-Angled Erect Image Finderscope, Tube Rings and Dovetail Mounting Bar

    From £ 4,699.00 Tax included
    1-5 Days UK Delivery*
    Delivery In 1-5 Days*
Showing 1 - 30 of 30 items