SM2-Compatible Rotation Mounts
Thrust Bearing Design
Compatible with SM2 Lens Tubes
One SM2RR Retaining Ring Included
Bottom-Located 8-32 (M4) Tapped Hole for Post Mounting
The RSP2(/M) Continuous Rotation Mount utilizes two precision bearings for smooth rotation. The aperture features internal SM2 (2.035"-40) threading and accepts Ø2" optics up to 0.51" (13 mm) thick as well as any SM2-threaded component. Secure the optic using the included SM2RR retaining ring.
The mount has a knurled edge for rotation. A 360° laser-engraved scale marked at 2° increments allows for precise, repeatable positioning and fine angular adjustment. A top-located 5/64" hex setscrew can be tightened to lock the rotation of the mount.
The PRM2(/M) high-precision rotation mount for Ø2" optics combines 360° of continuous coarse manual rotation with precise, backlash-free micrometer adjustment. The SM2-threaded (2.035"-40) inner bore accepts Ø2" optics up to 0.48" (12.2 mm) thick as well as any of our SM2-threaded components. Optics are secured with one SM2RR retaining ring (included with each mount).
The rotation dial face features a laser-engraved scale marked at 1° increments and can be rotated manually using the knurled outer surface (see drawing to the right). The thumbscrew, located on the lower right side of the mount, locks the dial face and engages the micrometer for fine adjustment. When locked, the micrometer provides ±7° of rotation at approximately 2.4 arcmin per micrometer division. This rotation mount also features a 0.05" hex setscrew on both sides that can lock both the fine and coarse rotational movement.
The PRM2(/M) is also compatible with our 60 mm cage system. The cage system can be mounted to the unit using ER cage assembly rods attached to the four 4-40 tapped holes located on the rotation dial face or the four 4-40 tapped holes located on the back side of the mount. The cage system attached to the back of the mount does not rotate.
Ø48 mm Clear Aperture
360° of Continuous Rotation
1° Engraved Graduations on Dial, Labeled Every 10°
Setscrew Locking Mechanism
Compatible with 60 mm Cage System
8-32 (M4) Tapped Hole for Post Mounting
The LCRM2 rotation mount is designed to mount Ø2" (Ø50.8 mm) optics up to 13 mm (0.51") thick in a 60 mm cage system. The optic is secured using the included SM2RR retaining ring (the SPW604 spanner wrench is ideal for tightening this retaining ring). For thicker optics, any of our SM2 lens tubes can be threaded into the carriage. The smooth rotation mechanism allows for precise positioning of the rotation carriage. The mount features a bottom-located 8-32 (M4) tapped mounting hole for post mounting, making it compatible with our Ø1/2" posts.
Holds Ø2" (Ø50.8 mm) Optics Up to 0.48" (12.2 mm) Thick
Laser Engraved Scale with Graduations Every 2°
This Nested Lens Mount Set is comprised of an inner optic carriage and an outer mounting ring (sold separately), allowing for easy exchange of optics while maintaining optical alignment. The LM2-A inner carriage is laser-engraved radially with graduation marks every 2° and labels every 20°. It accepts Ø2" (Ø50.8 mm) optics up to 0.48" (12.2 mm) thick into its SM2- (Ø2.035"-40) threaded bore. The mating LM2-B locks the position of the LM2-A using a top-located thumbscrew.
The LC1A(/M) Swivel Mount is ideal for building spectrometers or other prism- and grating-based systems that require arbitrary angular alignment. The swivel plates are internally threaded for compatibility with our SM2 (2.035"-40) Series of Lens Tubes. In addition, the plates and mounting platform of the LC1A(/M) are independently lockable.