Sky-Watcher EvoStar 120ED / ProED 120 120mm Doublet APO Refractor Telescope Optical Tube Assembly

How the Sky-Watcher EvoStar 120ED APO Refractor Telescope redefines the stargazing experience for serious amateur astronomers. This high-performance ED-APO refractor is renowned for its superior contrast, high-definition, and coal-black sky background that transforms stars into diamond-like points against a velvet black canvas.

The EvoStar 120ED APO Refractor utilizes cutting-edge optical glasses and advanced fabricating techniques to deliver unparalleled high-fidelity astronomical imaging. With this telescope, subtle celestial details come alive, offering a viewing experience that lesser optical instruments cannot match.

The additional aperture of the 120mm diameter lens dramatically enhances resolution, providing an immersive 3D high-definition view of lunar and planetary surfaces. From the rugged Southern Highlands of the lunar surface to the famous crater Theophilus, the EvoStar 120ED APO Refractor offers a detailed and captivating tour of the moon.

Refractors are considered the ultimate imaging instruments due to their ability to concentrate more light into the central airy-disk and first diffraction rings. The EvoStar 120ED APO Refractor, free from diffraction pattern interference caused by a diagonal mirror or secondary mirror, delivers sharper images than other optical designs.

Sky-Watcher ED-APO refractors are the pinnacle of their design class, offering the finest images obtainable. They deliver dramatic coal-black skies and contrast-rich views of planetary and deep-space phenomena that are unrivaled. These refractors virtually eliminate residual chromatic aberration, commonly found in 2-element achromatic lens designs, by utilizing the finest extra-low dispersion (ED) glass available, FPL-53.

Selected models of ED-APO refractors also benefit from the use of Schott glass for the positive front Crown element in the objective. Schott is a world leader in glass used for precision optical lens systems, including medical instrumentation and high-end camera lenses.

Every lens element in the Sky-Watcher ED-APO refractors is individually inspected for purity and absence of striae and other image-degrading imperfections. Each lens is polished to exacting standards of optical fabrication and performance by highly skilled opticians using state-of-the-art methodology and rigidly controlled optical testing procedures.

The Sky-Watcher EvoStar 120ED APO Refractor also features exotic anti-reflection metallic coatings on each air-to-glass lens surface to ensure optimum light throughput. The proprietary Sky-Watcher "Metallic High-Transmission Coatings" (MHC) are the finest photon anti-rejection coatings in their class.

The telescope's optical tube is made from aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white or black. The optical tube comes with attachment hardware that allows it to be securely fastened to compatible mounts.

In conclusion, the Sky-Watcher EvoStar 120ED APO Refractor Telescope offers an exceptional viewing experience for amateur astronomers, delivering consistent satisfaction and peak performance every time it's taken into the field.