SVBONY SV188P 1.25 Inch 90 Degree Mirror Diagonal with 99% Reflectivity Dielectric Coatings

The 1.25in Diagonal is a versatile and essential accessory for telescopes with 1.25in focusers. It features a 90-degree viewing angle, providing a more comfortable overhead viewing experience for observing celestial objects. The diagonal's design corrects the inverted and mirrored image, ensuring the view appears upright, though left-right reversed, making it suitable for space observation where there is no definitive "up" or "down."

The diagonal's construction includes a brass compression ring and thumbscrew, which securely hold eyepieces, filters, and other 1.25in accessories in place, preventing them from rotating during adjustments. This design not only ensures a solid connection but also protects the surfaces of the eyepieces from marring or scratching.

Regarding the product's key features, the enhanced aluminum die-cast construction provides durability and reliability, while the internal extinction design minimizes stray light reflections for improved image quality. The diagonal also offers a super-wide field of view and 13mm of eye relief, enhancing the overall viewing experience.

When comparing the SV221 90 Degree Diagonal to other accessories, such as the SV154 1.25inch Eyepiece and the SA410 Tripod with SA409 Fluid Head, the diagonal stands out with its 360-degree rotation capability and the option to detach it as a monopod, providing versatility in various observing scenarios.

The diagonal's specifications include a 1.25-inch size, dielectric coatings for enhanced reflectivity (over 99%), and an aluminum alloy construction, resulting in a lightweight and durable accessory weighing 125g (4.41oz).

In summary, the 1.25in Diagonal is a well-designed and versatile accessory that enhances the viewing experience of telescopes with 1.25in focusers. Its features, such as the 90-degree viewing angle, image correction, and secure brass compression ring, make it a valuable addition to any amateur astronomer's toolkit.

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