SV188 Zenith Mirror Diagonal 1.25" 90° for Refractor Telescopes
Upgrade your observing experience with the SV188 1.25" 90° Zenith Mirror Diagonal, designed specifically for refractor telescopes. Featuring a precision mirror with high-reflectivity coatings, this diagonal delivers bright, sharp, and high-contrast views while providing a comfortable 90-degree viewing angle for observing objects high in the night sky. The fully metal construction ensures durability, while the brass compression ring securely holds your eyepieces without scratching them.
Compatible with standard 1.25" eyepieces, filters, and Barlow lenses, the SV188 is an excellent upgrade for beginners and experienced astronomers alike, offering improved viewing comfort and reliable optical performance for lunar, planetary, and deep-sky observations.
The SV188 features a dielectric-coated mirror offering up to 99% reflectivity, reducing light loss and enhancing image brightness and contrast. It also includes a threaded nosepiece compatible with standard 1.25" filters and an upright image orientation with left-right reversal, which is typical for astronomical mirror diagonals.