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The 1.25" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This premium diagonal features 99% dielectric coatings, ensuring exceptional light transmission and durability. With dielectric coatings, you gain a brighter, sharper image with enhanced contrast, as the high reflectivity minimizes light loss across the optical path – perfect for observing fine planetary details, star clusters, and deep-sky objects.

Equipped with an innovative twist-lock mechanism, this diagonal provides a secure, centered hold for your eyepieces and accessories. Simply twist to lock your eyepiece in place – no more fumbling with thumbscrews or misalignments. This mechanism not only protects your equipment but also ensures optimal alignment for the best possible image quality, making it a convenient and reliable addition to your telescope setup.

The 1.25” format is compatible with standard 1.25” focusers. This twist-lock diagonal is built to last, with an anodized aluminum body that’s as durable as it is lightweight.

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