Optima All-Metal Prism

With an all metal holder and target.

Copper-coated prism has metal threads for long-life and durability. Brass tension lock prevents target and prism from slipping. The zero/-30mm offset holder is fully compatible with most major instrument manufacturers that use screw-in prisms. High visibility target is 5½" x 7" (14cm x 18cm). The height to the center of the tilting axis is 115mm. The height to the center of the tilting axis is 115mm.