Why Buy a STS?

The Sub-F/4 revolution of high-quality Newtonian primary mirrors is upon us and has brought larger apertures down to the level of the advanced amateur astronomer, both literally and figuratively;

These large, short, scopes represent the ultimate in deep space performance in a package that is transportable and comfortable to use all night long;

Moderate to larger apertures provide stunning deep space object details to fascinate even the most experienced observer;

Sub-F/4 focal ratios allow for breath-taking widefield views of the Milky Way and large deep space objects when combined with widefield eyepieces;

Our Truss Ring makes these apertures and focal ratios a breeze to set up and transport;

Primary mirrors are supplied exclusively by Lightholder Optical (16"-22"), manufacturer of fine primary mirrors. Antares Optics provides finely crafted 1/20 P-V secondary mirrors up to 4.00" Minor Axis that are a perfect match for these fast primary mirrors. Ostahowski Optical supplies 1/10 P-V secondary mirrors larger than 4.00". Magnifications of 40x-50x per inch of aperture are achievable on nights of steady atmospheric seeing conditions;

Lightholder Optical primary mirrors come with printed test reports, while Antares Optics and Ostahowski Optical secondary mirrors come Zygo tested.