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SM05-Compatible Rotation Mounts


  • 0.535"-40 Threading
  • Mount SM05 Lens Tubes
  • Mount Ø1/2" (Ø12.7 mm) Optics

CT104

SRM05

CRM05

RSP05

(Post Not Included)

PRM05

(Post Not Included)

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Features

  • SM05 (0.535"-40) Series Threaded
  • Mount Ø1/2" (12.7 mm) Optics
  • 360° Continuous Rotation of Optic
  • Engraved Scale and Set Screw to Lock Position of Manual Mounts

Thorlabs introduced the SM Series Threading standards to ensure compatibility over a broad range of product lines. SM Series Threaded components offer a simple and efficient solution for building optomechanical structures. The SM Threaded products available, including lens tubes and cage system components, fixed and kinematic mounts, irises and diaphragms, provide flexibility when constructing complex optical systems.

SM05 Threaded (0.535"-40) components are designed to mount or integrate Ø1/2" (12.7 mm) lens into optical systems. These SM05 threaded rotation mounts allow for the 360° degree rotation positioning of the optic; these mounts feature engraved scales and set screws to lock the optic's position.

This page contains our SM05 Compatible Rotation Mounts; for a full selection of available rotation mounts, including mounts which are SM1 and SM2 compatible, please visit our Rotation Mounts guide.


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Continuous Rotation Mount for Ø1/2" Optics

  • Mount Ø1/2" Optics up to 0.23" (5.8 mm) Thick
  • Compact: 1.00" x 0.87" x 0.45" (25.4 mm x 22.1 mm x 11.4 mm) [L x W x H]
  • Internal SM05 (0.535"-40) Threading for Compatability with SM05 Lens Tubes
  • One SM05RR Retaining Ring Included
  • Post Mountable via 8-32 (M4) Mounting Tap

With a 1.00" (25.4 mm) height and a 0.45" (11.4 mm) thickness, the RSP05(/M) Ø1/2" rotation mount is an ideal solution for compact optical assemblies. The center aperture accepts Ø1/2" optics up to 0.23" thick (5.8 mm), held in place with a SM05RR retaining ring (one included with RSP05). The knurled edge of the RSP05(/M) and the 360° laser-engraved scale marked at 2° increments allow for precise, repeatable positioning and fine angular adjustment. A convenient top-located setscrew can be tightened with a 1/16" (1.5 mm) hex key or balldriver to secure the rotational position of the mount.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
RSP05 Support Documentation
RSP05Rotation Mount for Ø1/2" (Ø12.7 mm) Optics, 8-32 Tap
$77.91
Today
+1 Qty Docs Part Number - Metric Price Available
RSP05/M Support Documentation
RSP05/MRotation Mount for Ø1/2" (Ø12.7 mm) Optics, M4 Tap
$77.91
Today

High-Precision Rotation Mount for Ø1/2" Optics

Half Inch Rotation Mount Mechanical Drawing
Click for Details

PRM05(/M) Mechanical Drawing
  • Accepts Ø1/2" (Ø12.7 mm) Optics up to 0.23" (5.9 mm) Thick
  • 360° Continuous Coarse Rotation
  • Direct Read 2° Graduations Engraved on the Edge of the Rotation Dial
  • ±7° of Fine Adjuster-Driven Rotation when Locked
  • Vernier Scale with 10 arcmin Resolution
  • Ideal for Ø1/2" Polarization Optics
  • Compatible with our SM05 Lens Tubes
  • One Retaining Ring (SM05RR) Included
  • Bottom-Located 8-32 (M4) Tapped Hole for Post Mounting

The PRM05(/M) high-precision rotation mount for Ø1/2" optics combines 360° of continuous coarse manual rotation with precise, backlash-free adjustment. The SM05 (0.535"-40) threaded inner bore accepts Ø1/2" optics up to 0.23" (5.9 mm) thick as well as any of our SM05-threaded components. Optics are secured between the rear lip and one SM05RR retaining ring, which is included with each mount.

The edge of the rotation dial features a laser-engraved scale marked at 2° increments and can be coarsely rotated manually using the knurled ring located on the rear of the mount (see drawing to the right). The 4-40 setscrew, which is inset into the side of the body of the mount, locks the dial face and engages the adjuster screw for fine rotation. When locked, the adjuster provides ±7° of rotation.

The PRM05(/M) is ideal for mounting our SM05PM5 polarizing prism mount, which features compatible SM05 threading. The cover on the SM05PM5 can be rotated, thereby allowing the user to block the two side ports when they are not required. The PRM05(/M) can be purchased bundled with our SM05PM5 (Item# PRM05GL5(/M) below). Together, they provide 360° of high precision rotation for either our 5 mm Glan-Laser or Glan-Taylor Polarizer.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PRM05 Support Documentation
PRM05High-Precision Rotation Mount for Ø1/2" (12.5 mm) Optics
$177.47
Today
+1 Qty Docs Part Number - Metric Price Available
PRM05/M Support Documentation
PRM05/MHigh-Precision Rotation Mount for Ø1/2" (12.5 mm) Optics, Metric
$177.47
Today

SM1-Threaded Continuous Rotation Mount for Ø1/2" Optics


Click to Enlarge

View Imperial Product List
Item #QtyDescription
CRM051Rotation Mount for Ø1/2" (Ø12.7 mm) Optics, External SM1 Threads
ER3-P41Cage Assembly Rod, 3" Long, Ø6 mm, 4 Pack
SM1L201SM1 Lens Tube, 2.00" Thread Depth, One Retaining Ring Included
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
CP021SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, 8-32 Tap
View Metric Product List
Item #QtyDescription
CRM051Rotation Mount for Ø1/2" (Ø12.7 mm) Optics, External SM1 Threads
ER3-P41Cage Assembly Rod, 3" Long, Ø6 mm, 4 Pack
SM1L201SM1 Lens Tube, 2.00" Thread Depth, One Retaining Ring Included
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
CP02/M1SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, M4 Tap
CRM05 Mount in a 30 mm Cage System

The CRM05 is a lockable, continuous-rotation mount for Ø1/2" optics. The mount features full 360° rotation of the front dial face and a setscrew for locking the rotational position into place. External SM1 threads (1.035"-40) allow the mount to be threaded directly onto any internally SM1-threaded device such as SM1 lens tubes or 30 mm cage cubes. The center aperture is SM05-threaded (0.535"-40) and accepts Ø1/2" (Ø12.7 mm) optics up to 0.26" (6.5 mm) thick. Optics are held in the mount with an included SM05RR retaining ring. Two notches along the mount's circumference accommodate the SPW801 adjustable spanner wrench to aid in securing the mount into place.

The knurled edge of the CRM05 and the 360° laser-engraved scale marked at 2° increments allow for precise, repeatable positioning and fine angular adjustment. Four equally spaced witness lines are engraved into the mount's perimeter, ensuring there is always a witness line in a convenient and easily readable position. The mount can be locked into position using the 0.035" hex setscrew on the outer edge.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CRM05 Support Documentation
CRM05Customer Inspired! Rotation Mount for Ø1/2" (Ø12.7 mm) Optics, External SM1 Threads
$71.96
Today

Ø1/2" Optic Rotation Mount

  • Coarse Rotation: 360° Continuously Adjustable
  • Graduations: 2° Increments
  • Mount Ø1/2" (Ø12.7 mm) Optics up to 0.29" (7.4 mm) Thick
  • Runout: <0.0001" Along Optical Axis
  • Maximum Clear Aperture: 0.43"
  • Beam Height: 0.72" (18 mm)
  • Lockable Design
  • Compatible with MS-Series Translators and CT1 Cage Translator

The CT104 has an internal SM05 threading for mounting Ø1/2" (Ø12.7 mm) optics and externally threaded SM05 threaded components. The CT104 mount provides 360° of continuous rotation for the mounted components. The 2° graduation allows for precise positioning of components such as linear polarizers and waveplates. A top-mounted, nylon-tipped setscrew is used to lock the position of the component. The mount is compatible with the MS103(/M) adapter plate and with the CT1 30 mm cage Z-axis translation stage. One SM05RR retaining ring, which secures a component by sandwiching it between the ring and the back lip on the mount. Two 4-40 and two M3 cap screws for securing the mount are included with each unit.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CT104 Support Documentation
CT104Rotation Mount for Ø1/2" Optics to use with CT1 or MS Stages
$97.66
Today

Ø1/2" Rotation Mount for 16 mm Cage System

  • 360° Continuously Rotatable
  • 2° Graduations on Dial
  • Nylon Tipped Locking Screw
  • Accepts Ø1/2" (Ø12.7 mm) Optics up to 0.24" (6.1 mm) Thick

The SRM05 continuously rotatable optic mounts are designed to work with our 16 mm cage systems. The SRM05 is ideal for mounting Ø0.5" optics up to 0.24" (6 mm) thick in a 16 mm cage system. For thicker optics, any SM05 Series lens tube can be threaded into the carriage. One SM05RR retaining ring is included.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SRM05 Support Documentation
SRM0516 mm Cage Rotation Mount for Ø0.5" Optics
$101.46
Today
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