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| Coad | 670843 | Type | 30mm Coaxial System Rotation Mount | |
| Optical Component Diameter (mm) | 25.40 | Optical Element Thickness (mm) | 7.90（MAX） | |
| Rotation Angle (°) | 360 | Graduation Accuracy（°） | 2 | |
| Clear Aperture | 23.5mm | Material | 6061-T6 Aluminum Alloy | |
| Radial Runout | ≤30μm | Axial Runout | ≤30μm | |
| Dimensions | 42.0 x 42.0 x 15.9mm | Optical Component Mounting Method | Setscrew Mount | |
| Surface Treatment | Black Anodized | |||
LBTEK offers four types of 30 mm cage system rotation mounts: CRM-1AS, CRM-1BS, CRM-1ADS, and CPRM-1A. These mounts are designed for Ø25.4 mm optics. Each mount features an M4-threaded hole on the base for post mounting and four Ø6 mm through-holes for integration into 30 mm cage systems, secured by M4 setscrews on the sides. CRM-1AS, CRM-1ADS, and CPRM-1A have SM1 internal threads and include an SM1R retaining ring for securing optics up to 9.4 mm thick, and can also accommodate optics with external SM1 threads. CRM-1BS has a smooth inner wall and secures optics with a minimum thickness of 7.9 mm via setscrews. All rotation mounts allow continuous 360° rotation, with a scale plate graduated at 2° intervals and angle numbers marked every 20°. An M4 side setscrew locks the rotation in place. CRM-1ADS includes differential vernier markings on top of CRM-1AS features, providing ±10 divisions with a resolution of 0.2°. CPRM-1A is a precision rotation mount with a micrometer drive, offering a fine adjustment range of ±7°, a resolution of 1° per revolution, and differential vernier markings with a precision of 5' (0.08°).
CRM-1BS features a smooth inner wall and uses an M4 nylon-tip setscrew to secure Ø25.4 mm optics with a minimum thickness of 7.9 mm. The mount allows continuous 360° rotation, with 2° scale graduations and angle numbers marked every 20°. An M4 side setscrew (compatible with a 2 mm hex key) is provided for locking rotation. The base includes an M4-threaded hole for direct post mounting.
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