
The Free-Space Rotation Mount provided by LBTEK is suitable for mounting Ø25.4 mm optical components and offers 360° rotation. The side thumb screw enables switching between coarse and fine adjustments. During coarse adjustment, the rotation dial has a scale accuracy of 1°, with differential line accuracy of 5′ (0.08°). For fine adjustment, the micrometer head provides an adjustment range of ±5° with an accuracy of 1.2′ (0.02°), and the micrometer head can be locked via the thumb screw on its top. The base features an M4 threaded hole for connecting to optical posts.

The RMS-1A Mounted on a Ø12.7 mm Stainless Steel Optical Post
Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Adjustment accuracy | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| RMS-1A | Ø25.4 mm | 12 mm | 1.2′(0.02°) | $206.31 | today |

The LBTEK CMRM1 Free-Space Rotation Mount is designed for installing Ø25.4 mm anisotropic optical components, featuring 360° rotation with 2° scale accuracy and numerical markings every 20°. It includes a side locking screw to secure the rotating body and has an M4 threaded hole at the bottom for connecting to optical posts.

CMRM1 Mounted on Ø12.7 mm Stainless Steel Optical Post
Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Scale accuracy | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| CMRM1 | Ø25.4 mm | 14 mm | 2° | $92.3 | 3 weeks |


Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|
| CMRMD2 | Ø50.8 mm | 13 mm | $141.33 | today | |||
| CMRMD1 | Ø25.4 mm | 13 mm | $98.71 | today |

The RMS-05A Rotating Mount is specifically designed for Ø1/2 inch optical elements, enabling 360° continuous manual coarse adjustment and backlash-free fine adjustment. Its SM05 (0.535"-40) internal threaded hole is compatible with Ø1/2 inch optical elements with a maximum thickness of 5.9 mm. The optical element is secured by the rear internal lip together with the standard SM05 retaining ring.
The outer edge of the rotating disk is equipped with a laser-etched scale with a minimum division of 2°, allowing for coarse adjustment via the knurled ring at the rear of the mount. The vernier reading multiplied by 2 converts to arcminutes. A built-in M3*3 set screw is used to lock the dial, working in conjunction with the adjustment screw for fine-tuning.

RMS-05A mounts on a Ø12.7 mm stainless steel optical post
Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Adjustment accuracy | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| RMS-05A New | Ø12.7 mm | 5.9 | 10′ | $116.49 | today |

The LBTEK CMRM05 Free-Space Rotation Mount is designed for mounting Ø12.7 mm anisotropic optical components, featuring 360° rotation with 2° scale accuracy and numerical markings every 20°. It includes a side locking screw to secure the rotating body. The base is equipped with an M4 threaded hole for connecting to optical posts. The top features a U-shaped groove for installing LBTEK Ø6 mm coaxial system mounting posts, facilitating experimental alignment.

CMRM05 Mounted on Ø12.7mm Stainless Steel Optical Post
Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Scale accuracy | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| CMRM05 | Ø12.7 mm | 7.2 mm | 2° | $44.71 | today |

The LBTEK CMRM05S Free-Space Rotation Mount is designed for mounting Ø12.7 mm anisotropic optical components, featuring 360° rotation with 2° scale accuracy and numerical markings every 20°. It includes a side locking screw to secure the rotating body and an M4 threaded hole at the base for connecting to optical posts.

CMRM05S Mounted on Ø12.7mm Stainless Steel Optical Post
Product Model | Applicable optical element diameter | Maximum applicable thickness of optical components | Scale accuracy | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| CMRM05S | Ø12.7 mm | 7.2 mm | 2° | $44.71 | 2 weeks |