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Zygo Tested Refractors

Here we have a list of the available telescopes that we can offer a Zygo Interferometer test and full 2 page report! Click here to read more information about this service.

Page 1 of 2:    18 Items

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Skywatcher Evostar 72ED DS Pro F/5.8 Doublet APO Refractor OTA & Case

Skywatcher Evostar 72ED DS Pro F/5.8 Doublet APO Refractor OTA & Case£329.00

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This high-end Evostar-72ED Apo features a doublet objective lens, with one Extra-Low Dispersion (ED) glass element. Top quality Schott glass is utilised for the Crown element.

New Never Used Altair 60 EDF Doublet Refractor Telescope V3

New Never Used Altair 60 EDF Doublet Refractor Telescope V3£399.00

A highly specified portable telescope, suitable for wide field imaging or visual use, day or night-time.

Second Hand William Optics Zenithstar 73 II APO Refractor OTA In Blue

Second Hand William Optics Zenithstar 73 II APO Refractor OTA In Blue£429.00

Zenithstar 73 is a greatly versatile and portable refractor telescope for beginners and veterans alike. Designed for both astrophotography and wildlife photography, high power visual observing through the Zenithstar 73 is also hugely satisfying.

Ex Demo Altair 72 EDF Refractor Dual Speed R&P Focuser Optical Test Report

Ex Demo Altair 72 EDF Refractor Dual Speed R&P Focuser Optical Test Report£599.00   £499.00

The Altair 72EDFX is a more refined version of the well-known and loved Lightwave 72 ED-R, circa 2013. Since then, this telescope has evolved into a state-of the art imaging or visual refractor, with improved optics in the form of an FPL53 based doublet objective lens providing superior colour correction.

Skywatcher Evostar 80 ED DS Pro OTA Full Kit

Skywatcher Evostar 80 ED DS Pro OTA Full Kit£529.00

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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.

William Optics Zenithstar 61 II APO Refractor OTA

William Optics Zenithstar 61 II APO Refractor OTA£579.00

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The newborn Zenithstar 61II (2020 Model) is the most versatile and portable scope ever made by William Optics. It provides and excellent sharp image with any DSLR for astrophotography or wildlife photography.

William Optics Zenithstar 73 III APO Refractor OTA

William Optics Zenithstar 73 III APO Refractor OTA£629.00

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Zenithstar 73 is a greatly versatile and portable refractor telescope for beginners and veterans alike. Designed for both astrophotography and wildlife photography, high power visual observing through the Zenithstar 73 is also hugely satisfying.

Second Hand Skywatcher Evostar 80 ED DS Pro OTA Full Kit With 0.85x Reducer

Second Hand Skywatcher Evostar 80 ED DS Pro OTA Full Kit With 0.85x Reducer£675.00

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.

RVO Horizon® 80 ED Doublet Refractor OTA

RVO Horizon® 80 ED Doublet Refractor OTA£729.99

The brand new RVO Horizon® 80mm ED Doublet refractor has joined the RVO Horizon family! These superior quality refractors deliver breathtaking images thanks to it's FPL-53 glass which will deliver high contrast, sharp views each and every time!

Takahashi FS-60CB F/5.9 Doublet Fluorite APO Refractor OTA With Zygo Interferometer Test Report

Takahashi FS-60CB F/5.9 Doublet Fluorite APO Refractor OTA With Zygo Interferometer Test Report£849.00

The Takahashi FS-60CB apochromatic refractor features exceptional optical and mechanichal qualities (objective with Fluorite doublet) and an incredible compact design. All Takahashi is in it.

William Optics Gran Turismo GT71 II APO Triplet Refractor

William Optics Gran Turismo GT71 II APO Triplet Refractor£894.00   £849.00

The new GT71 features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.

RVO Horizon® 80 ED Doublet Refractor Full Imaging Package

RVO Horizon® 80 ED Doublet Refractor Full Imaging Package£1,015.00  -  £1,025.00

The brand new RVO Horizon® 80mm ED Doublet refractor has joined the RVO Horizon family! These superior quality refractors deliver breathtaking images thanks to it's FPL-53 glass which will deliver high contrast, sharp views each and every time!

Skywatcher Esprit 80 ED APO Pro Triplet Refractor OTA

Skywatcher Esprit 80 ED APO Pro Triplet Refractor OTA£1,195.00

Sky-Watcher Professional ESPRIT 3-Element ED apochromatic refractors offer optical performance rivaling similar telescopes from even the most famous high-end brands.

William Optics Gran Turismo GT81 IV Triplet ED Refractor OTA

William Optics Gran Turismo GT81 IV Triplet ED Refractor OTA£1,245.00

The new 2019 GT81 MKIV (Fourth Generation) three-element super APO Anniversary offer superb quality for imaging and visual use at an affordable price!From the pristine white finish on the CNC to the elegant gold trim which has more than just good looks.

Skywatcher Esprit 100 ED f/5.5 Super Apo Triplet Refractor OTA

Skywatcher Esprit 100 ED f/5.5 Super Apo Triplet Refractor OTA£1,944.00   £1,799.00

Sky-Watcher Professional ESPRIT 3-Element ED apochromatic refractors are instruments of the highest quality with optical performance rivalling or exceeding similar telescopes of even the most famous high-end telescope brands.

William Optics  Fluorostar FLT 91 APO Triplet

William Optics Fluorostar FLT 91 APO Triplet£1,989.00

New for 2021 - The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. The three-element optical design features a 91mm aperture using FPL-53 glass. 

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Page 1 of 2:    18 Items