Sky-Watcher presents the EvoStar 100 ED Apochromatic Refractor OTA, an embodiment of precision and excellence in the realm of astronomical observation. Renowned for its leadership in designing and manufacturing ED-APO systems, Sky-Watcher proudly offers an extensive array of ED-APOCHROMATIC refractors, setting the standard for optical and mechanical quality across the globe. Crafted with the finest fabrication materials, each Sky-Watcher APO refractor undergoes meticulous manufacturing processes to ensure peak performance, providing amateur astronomers with an unparalleled experience every time they embark on celestial explorations.

The Sky-Watcher EvoStar 100ED APO Refractor stands as a testament to the brand's commitment to delivering consistent satisfaction over decades. This refractor, designed for a lifetime of astronomical enjoyment, combines a 100mm aperture with advanced optics to bring celestial wonders into crystal-clear focus.

• 100mm f/9 apochromatic doublet optics using an ED element
• Dual-speed 2" Crayford focuser with 10:1 ratio fine focusing
• 2" dielectric star diagonal with 2" and 1.25" eyepiece holders
• Two 1.25" Long Eye Relief eyepieces (20mm and 5mm)
• 8 x 50mm right-angle finderscope
• Dovetail shoe for installing on a Celestron CG-5 mount or any Vixen-style altazimuth or German equatorial mount

Embarking on a journey through the cosmos with the EvoStar 100ED reveals the lunar surface in exquisite detail, exposing the jagged mountain ridges and intricate craters with razor-sharp clarity. Observing the gas giant Jupiter unveils its swirling equatorial bands adorned with festoons, providing a high-definition spectacle. Saturn's storied surface phenomenon captivates observers with stunning clarity. Double stars like Epsilon Lyrae, the "double-double" in Lyra, and the captivating Alberio in the tail of Cygnus, shine brilliantly, showcasing the refractor's ability to deliver crisp and well-defined images.

Compact globular star clusters, such as M2, M4, and M10, come to life with the EvoStar 100ED, revealing more stars than larger reflectors. The fantastic globular cluster M13 in Hercules becomes a stunning sight in this refractor, showcasing its bright central cores and resolving the brightest stars.

As an astrograph, the EvoStar 100ED APO excels, providing superb imaging of planetary, lunar, and deep-space phenomena with crisp, high-fidelity results. Refractors, recognized as the ultimate imaging instruments, exhibit sharper images due to their design, concentrating more light into the central airy-disk without the interference caused by diagonal mirrors or secondary mirrors.

Sky-Watcher ED-APO refractors, including the EvoStar 100ED, stand as the pinnacle in their design class, delivering images of unparalleled quality. The use of extra-low dispersion (ED) glass, specifically FPL-53, virtually eliminates chromatic aberration, ensuring clear and color-accurate views. Selected models benefit from Schott glass for the positive front Crown element, enhancing precision and optical performance.

In the pursuit of perfection, Sky-Watcher employs rigorous quality control, inspecting each lens element for purity and absence of imperfections. The lenses undergo meticulous polishing and are uniformly air-spaced in their cell housings, ensuring diffraction-limited optics that perform to the theoretical limits of their aperture sizes.

The proprietary Metallic High-Transmission Coatings (MHC) applied to each air-to-glass lens surface maximize light throughput, providing the finest anti-reflection coatings in their class. The objective lens cell and draw tube are light-baffled, rejecting stray light and ensuring optimum contrast.

The EvoStar 100ED features a precision 2" Crayford-style focuser with 2-speed operation for fine and ultra-fine focusing adjustments. The telescope tube, made of aluminum and powder-coated reflective gloss black with gold fleck accent, exudes a blend of elegance and functionality. Attachment hardware and quick-release tube rings, cast-aluminum and painted white, facilitate secure fastening to compatible mounts.

For added convenience, Sky-Watcher includes a comprehensive set of components with selected EvoStar models, such as 2-speed 2" Crayford-style focusers, foam-lined metal carrying cases, a right-angle 8x50mm viewfinder with bracket, a 2" dielectric diagonal, two 1.25" LE (Long Eye Relief) eyepieces (LET20mm and LET5mm), a 1.25" focuser adaptor, and tube ring attachment hardware compatible with mounts. The EvoStar series represents a commitment to advancing astronomical instrumentation, providing enthusiasts with the tools for extraordinary viewing and photography experiences.

SkyWatcher telescopes come with a 2 year warranty.