Vixen SD115S II OTA 115mm 890mm f7.5
The Vixen SD115S II is a high-performance apochromatic refractor telescope that serves as the outstanding successor to the highly regarded SD115S optical tube. With a generous 115mm aperture and an 890mm focal length, this versatile instrument is engineered to deliver exceptional performance for both detailed visual observation and high-quality astrophotography.
Key Features
- Superb Optical Performance: The high-performance SD glass lens significantly suppresses colour fringing and chromatic aberration for crystal-clear images.
- Improved Ring-Shaped Spacers: Upgraded from traditional foil fragments to a ring-shaped spacer design, ensuring uniform diffraction and beautifully round, clean star images.
- Versatile Photo-Visual Design: A moderate focal length of 890mm makes it ideal for everything from high-magnification planetary observation to capturing distant nebulae and star clusters.
- Convenient Flip Mirror: The supplied flip mirror diagonal allows you to quickly switch the optical path between straight-through and vertical viewing, facilitating rapid transitions between an eyepiece and a camera.
- Easy Transport and Mounting: Outfitted with a standard dovetail attachment plate and a sturdy metal carry handle for effortless setup, detachment, and transport.
- Astrophotography Ready: Can be easily paired with optional corrective lenses to support full-frame DSLR and CMOS cameras with a generous 44mm image circle.
When combined with optional specialised corrective optics, this telescope transforms into a premium astrograph compatible with full-frame cameras. Whether you are exploring the solar system or capturing deep-space wonders, this optical tube assembly offers a premium observing experience.
Improved spacers for beautiful star images
In the former SD115S optical tube, small fragments of tin foil are set at three places evenly around the lens as spacers.
The small fragments that appear inside the effective aperture of the lens as protrusion generates diffractions around the star image by the light of incidence, resulting in three breaks radially around the star image. You get the star image beautifully as the diffraction light becomes uniform by exchanging the small fragments for a ring-shaped spacer.
High-performance SD glass lens that suppresses color fringing
In the refractor that gathers light using a lens, color fringing (chromatic aberration) occurs by the difference in refractive index from different wavelengths (colors) of the light that passes through the lens. Then, an invention was extra-low dispersion glass to eliminate the chromatic aberration.
Prepared to meet a wide range of purposes from visual observation to astrophotography
By setting a reasonable focal length (890mm) for the objective effective aperture (115mm), you can use it for a wide range of purposes, from planetary observations to photography of nebular and star clusters. The supplied flip mirror diagonal allows you to switch the optical path with a knob to straight through or vertical orientation quickly.
Two eyepieces with different magnifications are usable quickly. You readily switch between visual observing and photography by attaching a camera on one side and an eyepiece on the other. The SD115SII is equipped with a standard dovetail attachment plate and a metal carry handle. Those accessories make you easily attaching to and detaching from the mount and transporting the optial tube.
Available for full-frame DSLR cameras/CMOS cameras, suitable for high-quality astrophotography
In combination with an SD Reducer HD Kit and an SD Flattener HD Kit (both sold separately), you will be ready to take high-quality astrophotography with a full-frame DSLR camera or CMOS camera.
Brand: Vixen |
Code: VX26087
Supplier Code: 26087
Brand: Vixen |
Code: VX26087
Supplier Code: 26087
At a glance
The Vixen SD115S II is a high-performance apochromatic refractor telescope that serves as the outstanding successor to the highly regarded SD115S optical tube. With a generous 115mm aperture and an 890mm focal length, this versatile instrument is engineered to deliver exceptional performance for both detailed visual observation and high-quality astrophotography.
Key Features
- Superb Optical Performance: The high-performance SD glass lens significantly suppresses colour fringing and chromatic aberration for crystal-clear images.
- Improved Ring-Shaped Spacers: Upgraded from traditional foil fragments to a ring-shaped spacer design, ensuring uniform diffraction and beautifully round, clean star images.
- Versatile Photo-Visual Design: A moderate focal length of 890mm makes it ideal for everything from high-magnification planetary observation to capturing distant nebulae and star clusters.
- Convenient Flip Mirror: The supplied flip mirror diagonal allows you to quickly switch the optical path between straight-through and vertical viewing, facilitating rapid transitions between an eyepiece and a camera.
- Easy Transport and Mounting: Outfitted with a standard dovetail attachment plate and a sturdy metal carry handle for effortless setup, detachment, and transport.
- Astrophotography Ready: Can be easily paired with optional corrective lenses to support full-frame DSLR and CMOS cameras with a generous 44mm image circle.
When combined with optional specialised corrective optics, this telescope transforms into a premium astrograph compatible with full-frame cameras. Whether you are exploring the solar system or capturing deep-space wonders, this optical tube assembly offers a premium observing experience.
Improved spacers for beautiful star imagesIn the former SD115S optical tube, small fragments of tin foil are set at three places evenly around the lens as spacers. The small fragments that appear inside the effective aperture of the lens as protrusion generates diffractions around the star image by the light of incidence, resulting in three breaks radially around the star image. You get the star image beautifully as the diffraction light becomes uniform by exchanging the small fragments for a ring-shaped spacer. |
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High-performance SD glass lens that suppresses color fringingIn the refractor that gathers light using a lens, color fringing (chromatic aberration) occurs by the difference in refractive index from different wavelengths (colors) of the light that passes through the lens. Then, an invention was extra-low dispersion glass to eliminate the chromatic aberration. |
Prepared to meet a wide range of purposes from visual observation to astrophotographyBy setting a reasonable focal length (890mm) for the objective effective aperture (115mm), you can use it for a wide range of purposes, from planetary observations to photography of nebular and star clusters. The supplied flip mirror diagonal allows you to switch the optical path with a knob to straight through or vertical orientation quickly. Two eyepieces with different magnifications are usable quickly. You readily switch between visual observing and photography by attaching a camera on one side and an eyepiece on the other. The SD115SII is equipped with a standard dovetail attachment plate and a metal carry handle. Those accessories make you easily attaching to and detaching from the mount and transporting the optial tube. |
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Available for full-frame DSLR cameras/CMOS cameras, suitable for high-quality astrophotographyIn combination with an SD Reducer HD Kit and an SD Flattener HD Kit (both sold separately), you will be ready to take high-quality astrophotography with a full-frame DSLR camera or CMOS camera. |
