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GSO (Guen Sheng Optical) are a Taiwanese optical manufacturer. They are well known for their range of Ritchey Chretien telescopes due them being particularly low cost. GSO products are often rebadged and are the basis for many brands such as Omegon, TS, Astro-Tech, Revelation and many more. Hyperbolic mirrors used by RC's have traditionally been costly to produce. GSO have successfully combined mass production with good quality to offer reflective optics that provide significant value. Additionally, GSO have also been able to bring carbon fibre truss construction to mass production. As well as Ritchey Chretien's, GSO offers excellent Newtonian and classic Cassegrain optics. The latter make good use of GSO's expertise by combining a parabolic primary (Newtonian) with a hyperbolic secondary (Ritchey Chretien) to provide a scope that offers many of the advantages of the Ritchey Chretien but that offers better performance for visual use and planetary imaging. 



Tecnosky is an Italian Company that offers a wide range of products from excellent value refractors to inhouse designed mounts. We have found Tecnosky to offer excellent after sales service and have no hesitation in recommending their products. All Tecnosky telescopes are checked and tested before shipping to customers.


QHYCCD designs and manufactures world-leading astronomical cameras, ranging from entry-level to professional, CMOS and CCD, front-illuminated and back-illuminated, specially crafted for amateur and professional astronomers worldwide.