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Vixen SD81S 81mm FPL-53 ED Refractor Telescope

by Vixen
SKU ES26146
Sold out
Original price $1,399.95 - Original price $1,399.95
Original price
$1,399.95 - $1,399.95
Current price $1,399.95
Out of stock

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Vixen Optics SD81S 81mm FPL-53 ED APO f/7.7 Refractor Telescope


Introducing the Vixen SD81S 81mm FPL-53 ED Refractor Telescope, a cutting-edge apochromatic refractor featuring high-performance Super ED glass (SD).

The FPL53 glass ensures an exceptionally clear and sharp image, virtually eliminating residual color defects.

With precision engineering, the SD glass aligns violet, red, blue, yellow, and green rays onto the same plane.

This specialized lens material dramatically reduces chromatic aberration across all colors.

In synergy with the optional SD Reducer HD Kit or SD Flattener HD, these refractors facilitate a 44mm image circle for full-format SLR cameras, granting expanded imaging possibilities.

One of the standout features of these SD refractors is their compact size and lightweight nature.

While the ED81SII, ED103S, and ED115S refractors were initially designed for visual or APS-C camera use, the new SD series has been refined to accommodate full-frame cameras through updated inner panels.

The substantial focuser effortlessly supports heavier cameras without tilting concerns.

For added convenience, the included folding mirror ensures comfortable observation, even in challenging conditions, and presents a T2 thread for seamless DSLR camera attachment.



  • 81mm Objective Lens: The 81mm objective lens offers a balance between portability and light-gathering capability. While it's compact and easy to transport, it still captures a sufficient amount of light to provide clear and detailed views of various celestial objects.
  • High-performance Super FPL-53 ED Glass Lens: The use of high-performance Super FPL-53 ED glass in the lens construction is a standout feature. This glass minimizes chromatic aberration, ensuring that colors come together accurately, resulting in images with exceptional clarity and sharpness. It significantly reduces color fringing around high-contrast objects.
  • Short Overall Length and Low Weight: The telescope's compact design and low weight make it convenient for transportation and setup. This feature is especially beneficial for both on-the-go observations and field trips, allowing you to explore the night sky with ease.
  • Ideal for Planetary Observation and Photography: The combination of the objective lens size and advanced optics makes this telescope particularly well-suited for planetary observation and photography. The reduced chromatic aberration ensures that planetary features are distinct and sharp, making it a valuable tool for capturing detailed planetary images.
  • Illumination with a 44mm Image Circle for Full Format: The optional SD Reducer HD Kit or SD Flattener HD expands the telescope's imaging capabilities, enabling illumination with a 44mm image circle suitable for full-format cameras. This wider field of view accommodates larger camera sensors, making it an excellent choice for capturing expansive deep-sky scenes.
  • Pure-color, High-contrast Images: The combination of the ED glass and advanced optics results in pure-color and high-contrast images. Color fringing and distortions are significantly reduced, allowing for accurate representation of celestial objects and enhancing the overall visual and photographic experience.

                                        What's Included:

                                        ✓ Vixen SD81S 81mm FPL-53 ED Refractor Telescope

                                        ✓ Carry handle

                                        ✓ Flip mirror

                                        ✓ Red dot finder

                                        ✓ Pipe clamps

                                        ✓ Dovetail adapter

                                        ✓ Vixen Electronic Parts: Limited 1 Year Warranty

                                        ✓ Vixen Mechanical Parts: Limited 2 Year Warranty


                                        • Versatile Observing: The telescope's 81mm objective lens finds the perfect balance between portability and light-gathering prowess, adapting seamlessly to diverse observational scenarios.
                                        • Cutting-edge Glass Optics: Crafted with advanced Super FPL-53 ED glass, this lens excels at eradicating chromatic aberration, resulting in crystal-clear images that faithfully reproduce accurate color tones.
                                        • Effortless Portability and Setup: Designed with a compact build and lightweight materials, this telescope's effortless portability and quick setup make it an excellent choice for spontaneous stargazing escapades.
                                        • Enhanced Planetary Exploration and Photography: Precision-engineered for planetary enthusiasts and astrophotographers, this telescope's minimized chromatic aberration significantly elevates the quality of visual and photographic planetary representations.
                                        • Expanded Imaging Potential with 44mm Image Circle: By harnessing optional accessories like the SD Reducer HD Kit or SD Flattener HD, this telescope offers an extended perspective through a spacious 44mm image circle, catering to the demands of full-format camera imaging.
                                        • Vivid, High-Contrast Celestial Views: Seamlessly integrating advanced optics and pioneering glass technology, this telescope captures celestial wonders in pure colors and high-contrast precision, bringing out intricate details for breathtaking observations.
                                        • Included Accessories: The package includes a carry handle, a foldable mirror,  red dot finder, pipe clamps and a versatile dovetail adapter for compatibility ensuring a comprehensive and convenient stargazing experience.


                                                                                      Optical design Apochomatic Refractor
                                                                                      Mirror/Lens diam. 81 mm
                                                                                      ED Glass Yes
                                                                                      Focal length and Aperture ratio 625 mm f/7.7
                                                                                      Angular resolution 1.43 arc seconds
                                                                                      Eyepiece adapter 50.8mm (2 inches) and 31.7mm (1.25 inches)
                                                                                      Visual limiting magnitude 11.3 (approx., mag)
                                                                                      Viewfinder XY Red Dot Finder II
                                                                                      Dimensions and weight 90mm dia x 585mm, 3.6kg

                                                                                      Customer Reviews

                                                                                      Based on 1 review

                                                                                      This is a great looking scope with amazing optics. I had been unsure about spending this much for my first telescope, glad I took the big plunge on this Vixen. Planet viewing has simply been awesome.