SVBONY SV188P 1.25" Dielectric Mirror Diagonal 90°
Dielectric Mirror Diagonal – Benefits for You
✅ Enjoy brighter, more detailed celestial views thanks to high reflectivity that boosts image quality.
✅ Reduce eye strain with a comfortable 90° viewing angle that makes long observing sessions easier.
✅ Connect accessories with confidence so you can build a setup tailored to your style of astronomy.
✅ Keep your eyepieces protected from scratches, letting you preserve your equipment for years.
✅ Experience smooth, secure attachment so you can switch accessories without interrupting your observing flow.
✅ Capture clearer astrophotography results by pairing filters and optics that enhance contrast.
✅ Enjoy durable construction that stands up to regular use, giving you reliable performance night after night.
Upgrade your telescope experience with a diagonal that brings clarity and comfort to every observing session.
The SV188P features multi‑layer dielectric coatings designed to deliver an impressive 99% reflectivity, which helps preserve brightness and detail across the entire field of view. This coating technology ensures that subtle features on the Moon, planets, and deep‑sky objects stand out with clarity.
Its 1.25" nosepiece fits standard telescope focusers, making it compatible with a wide range of refractors, Maksutov‑Cassegrain, and Schmidt‑Cassegrain telescopes. You can easily pair it with typical 1.25" eyepieces, Barlow lenses, and filters to expand your observing options.
A precise 90° viewing angle helps you observe comfortably when objects are high overhead, reducing awkward neck angles and enhancing your overall experience. This orientation is especially helpful during long nights spent exploring the sky.
The built‑in 28.5x0.6 threaded connection lets you attach 1.25" filters directly. This is ideal for boosting contrast during lunar and planetary viewing or refining your astrophotography setup.
A brass compression ring and locking screw hold accessories in place without marring their barrels. This gives you both security and equipment protection, especially when frequently swapping between eyepieces.
The diagonal delivers an upright image with a left‑to‑right reversal, a typical orientation for astronomical use. This layout helps preserve contrast and sharpness for detailed observations of planets and deep‑sky objects.
The housing is made from machined and anodized aluminum alloy, providing a durable and stable structure that resists wear over time. The interior uses threaded baffles to help maintain image contrast during viewing.
The SV188P includes a 54mm optical path length, 1.25" sizing, M4 set screws, dielectric coatings with 99% reflectivity, and a lightweight 125 g build that keeps your setup balanced. These elements combine to create a diagonal designed for smooth, efficient, high‑contrast observing.
Whether you're scanning lunar craters, following planetary detail, or enhancing deep‑sky contrast, this diagonal adds precision and reliability to your telescope arrangement.
Bring sharper, more comfortable viewing to your nights under the stars with the SV188P Dielectric Mirror Diagonal.
Choose options