The 1.25" star diagonal Comes with a thick, precision, optical flat mirror with an enhanced 99% reflective dielectric coating. Compression ring holds eyepieces firmly. Aluminum construction with carbon fiber side plates. The 1.25" female insert tube on this diagonal will accept 34mm or 1.34" of nose piece length before hitting the built in safety stop. If your 1.25" nose piece is longer than this specified distance, the nose piece will not fully insert, though this is rarely an issue.
- The D1030 adds 3.7" (94mm) to the optical path.
- The D1030 adds 7.15oz to the overall weight of the system
