Vixen Optics SD115S 115mm f/7.7 ED APO Refractor Telescope

Redefine Astrophotography—Perfect for Full-Frame DSLRs

Struggling with telescope compatibility? The SD115S optimizes full-frame cameras, giving you flawless images every time without uneven illumination.

Features

• 115mm / 4.5" Apochromatic Refractor: Enjoy exceptional clarity and sharpness with a large aperture that gathers more light, revealing the finest details of celestial objects.
• 890mm Focal Length & f/7.7 Focal Ratio: Perfect balance between power and versatility, providing high magnification without compromising image quality.
• FPL53 Extra-Low Dispersion Glass: Reduces chromatic aberration across the color spectrum, ensuring vibrant, true-to-life images.
• Fully Multi-Coated Optics: Maximizes light transmission for brighter, sharper images, minimizing glare and reflections.
• 60mm & 42mm Adapter Threads: Flexible compatibility with various accessories, making it easy to customize your setup.
• 1.25" Dual-Holder Flip-Mirror Diagonal: Quickly switch between visual observation and imaging without reconfiguring your setup.
• Vixen Dovetail Mounting Rings: Securely attaches to your mount with ease, ensuring stability during long observation sessions.
• 7x50 Illuminated-Reticle Finderscope: Easily locate and track celestial objects with precision, even in low-light conditions.
• Lightweight & Portable: Despite its large aperture, the telescope remains easy to transport, perfect for mobile stargazers and astrophotographers.
• Full-Frame Camera Compatibility: Optimized for use with full-frame DSLRs, ensuring even illumination and superior image quality.

The Vixen Optics SD115S is for you if…

• You’re an avid astronomer seeking a powerful yet portable telescope that delivers stunningly sharp, chromatic-aberration-free images of the night sky.
• You’re an astrophotographer looking for a versatile optical tube assembly (OTA) that works seamlessly with full-frame DSLRs, allowing you to capture the universe in all its glory.
• You’ve outgrown entry-level telescopes and want to upgrade to a premium refractor that offers both high performance and ease of use, perfect for deep-sky observation and planetary viewing.
• You need a telescope that’s lightweight and portable, making it easy to take to dark-sky locations or set up quickly in your backyard without compromising on quality.
• You’re an educator or astronomy club leader who needs a reliable, high-quality telescope that’s easy for students or members to use, providing crystal-clear views for both visual observation and imaging.

Investing in the Vixen Optics SD115S 115mm f/7.7 ED APO Refractor Telescope is about achieving unparalleled clarity and detail in your stargazing and astrophotography endeavors. With its 115mm (4.5") aperture, this telescope offers exceptional light-gathering power, allowing you to observe deep-sky objects like the Whirlpool Galaxy (M51) or the Eagle Nebula (M16) in stunning detail. The use of FPL53 extra-low dispersion (ED) glass, a top-tier optical material, ensures minimal chromatic aberration, giving you razor-sharp images with accurate color reproduction across the entire visible spectrum.

Consider the advantage of an 890mm focal length combined with a versatile f/7.7 focal ratio. This configuration provides the ideal mix of magnification and field of view, perfect for capturing high-resolution images of Saturn’s rings or the intricate surface details of the Moon. The SD115S is optimized for astrophotography, particularly when paired with full-frame DSLRs. Its fully multi-coated optics maximize light transmission, delivering bright, contrast-rich images without the frustrating issues of vignetting or uneven illumination that plague lesser telescopes.

Despite its powerful performance, the SD115S is remarkably portable, weighing only 13.6 pounds (6.2 kg) and measuring 930mm in length. This makes it easy to transport to remote dark-sky locations, where you can take full advantage of its capabilities. The included 1.25" dual-holder flip-mirror diagonal is a game-changer, allowing you to switch effortlessly between visual observation and various imaging setups without disrupting your workflow. The telescope also comes equipped with a 7x50 illuminated-reticle finderscope, which enhances your ability to locate and track celestial objects with precision, even in challenging lighting conditions.

Mounting the SD115S is straightforward and secure, thanks to the Vixen dovetail mounting rings. This feature is crucial for maintaining stability, especially when using heavier cameras or accessories during long-exposure astrophotography. Moreover, the telescope's compatibility with optional SD Reducer HD and SD Flattener HD kits significantly enhances its functionality. These accessories enable a 44mm image circle, which is essential for achieving full-frame camera coverage with perfect edge-to-edge sharpness, making the SD115S not just a telescope, but a comprehensive astrophotography system.

For serious astronomers and astrophotographers, the Vixen Optics SD115S is the tool that brings the wonders of the universe into sharp focus. Whether you’re documenting the spiral arms of distant galaxies, capturing the delicate colors of a nebula, or simply enjoying an unmatched view of the planets, this telescope delivers the precision and quality you need. With the SD115S, you’re not just observing the night sky—you’re unlocking its full potential. Make this investment, and experience astronomy like never before.

Explore the Cosmos: Discover the Wonders You Can See

With the Vixen Optics SD115S 115mm f/7.7 ED APO Refractor Telescope, the universe is at your fingertips. Witness the breathtaking details of the Moon's craters and mountains, the stunning rings of Saturn, and the swirling cloud bands of Jupiter. Dive deeper into the night sky to explore distant galaxies like Andromeda, glowing nebulae such as the Orion Nebula, and sparkling star clusters like the Pleiades. Whether you're observing our solar system or far-off deep-sky objects, the SD115S brings the cosmos into clear, vibrant focus, revealing the universe in all its glory.

Everything You Need: Essential Accessories for a Seamless Stargazing Experience

The Vixen Optics SD115S 115mm f/7.7 ED APO Refractor Telescope comes fully equipped with essential accessories that enhance your stargazing and astrophotography sessions. The Mounting Tube Rings provide a secure and stable connection to your mount, ensuring that your telescope remains steady during long observation sessions or when capturing those perfect astrophotography shots. The Diagonal Flip-Mirror adds convenience by allowing you to quickly switch between visual observation and imaging without needing to reconfigure your setup.

For easy attachment and adjustment, the Dovetail Mounting Plate offers compatibility with various mounts, giving you flexibility and reliability whether you're at home or out in the field. The Carry Handle ensures that transporting your telescope is hassle-free, making it easy to bring your equipment to the best observation sites. And to help you accurately locate and track celestial objects, the package includes a 7x50 Viewfinder with an illuminated reticle, perfect for pinpointing even the faintest stars and galaxies in the night sky. These accessories are designed to work seamlessly with the SD115S, providing you with everything you need for an exceptional experience under the stars.

What Reviewers Across the Web Are Saying...

Customers love the Vixen Optics SD115S for its exceptional optical quality, thanks to the FPL53 extra-low dispersion glass that delivers sharp, color-accurate images with minimal chromatic aberration. The telescope’s robust build and thoughtful design, including a high-quality flip mirror and sturdy mounting system, are frequently highlighted as top features. Astrophotographers especially appreciate its versatility and compatibility with full-frame DSLR cameras, making it a favorite for capturing stunning celestial images. Despite its premium price, users agree that the SD115S delivers impressive performance and durability, justifying the investment.