1.25" Dielectric Star Diagonal (D1030)

The compression ring on this star diagonal holds my heaviest eyepieces securely without any slipping, and the safety groove on the insert tube gives me peace of mind when swapping out lenses in the dark.

The dielectric coating on this diagonal is noticeably brighter than my old prism—that 99% reflectivity really makes a difference on faint nebulae. The compression ring holds my 2" eyepieces securely without any slipping. Very pleased with the build quality for the price.

Swapping between eyepieces is effortless thanks to the compression ring, and the 99% reflective coating really delivers crisp, bright views of Jupiter's bands.