SM-Z4 Non-Rotating Precision Positioning Sleeve (SM1-Compatible)
• Precision positioning of optics within SM1 lens tube systems
Provides fine linear motion for mounting and positioning of Ø1" optics with high stability.
• Non-rotating linear translation design
Prevents unwanted rotation of optics (e.g., objectives or lenses) during translation—ideal for sensitive alignment.
• SM1 (1.035"-40) Internal & External Threading
Fully compatible with all standard SM1 tube systems and accessories.
• Includes One CSK3 Retaining Ring
Securely holds up to 10.7 mm thick optics inside the mount.
• 4.1 mm Linear Travel
The helical mechanism offers precise, backlash-free movement without optical rotation.
| Model |
SM-Z4 |
| Dimensions |
Ø41.7 mm × 25.7 mm |
| Max Travel |
4.1 mm Linear Translation |
| Compatible Optics |
Ø1" (25.4 mm), Thickness ≤ 10.7 mm |
| Thread Type |
SM1 (1.035”-40), Internal & External |
| Weight |
72.9 g |
| Material |
Aluminum Alloy + Stainless Steel |
CSM-Z5 Non-Rotating Zoom Lens Tube (SM1-Compatible)
• Internal slot accepts standard SM1 lens tubes
Designed to build modular telescope assemblies or variable-length optical systems.
• Non-rotating translation for SM1 lens tubes
Ensures mounted components do not rotate during adjustment, ideal for sensitive optics.
• Holds Ø1" optics up to 0.42" (10.7 mm) thick
Secured using one included SM1 retaining ring (CSK3).
• Provides 0.16" (4.1 mm) linear travel
Precise movement with 0.5 mm linear translation per full rotation of the actuator.
• Fixed SM1 external thread + SM1 internal thread on moving section
Compatible with all SM1 (1.035"-40) standard components.
CSA-X Series Adjustable SM1 Light-Shielding Tube for 30 mm Cage Systems
• Enables stray light shielding between cage plates or cage lens tubes in a 30 mm cage system
Designed to bridge gaps where standard-length components do not fully block light.
• Telescoping light-shielding within a specified range
One end fixed, the other freely rotatable and extendable—up to 49 mm of travel.
• SM1 (1.035"-40) external threads on both ends
Compatible with standard SM1-threaded components and 30 mm cage plates.
• Provides a rigid, enclosed light-tight structure
Ideal for forming continuous enclosed optical paths between cage segments.
| Model |
Outer Diameter × Initial Length |
Thread Type |
Extension Range |
Total Travel |
Weight |
Material |
| CSA-14X |
Ø30.0 mm × 14.0 mm |
SM1 (1.035"-40) external |
14 – 23 mm |
9 mm |
– |
7075 Aluminum |
| CSA-31X |
Ø30.0 mm × 31.0 mm |
SM1 (1.035"-40) external |
31 – 50 mm |
19 mm |
– |
7075 Aluminum |
| CSA-60X |
Ø30.0 mm × 60.0 mm |
SM1 (1.035"-40) external |
60 – 109 mm |
49 mm |
– |
7075 Aluminum |
CSM1-T Series – Ø1" Adjustable Lens Tubes (SM1 Compatible)
• Precisely positions optics within SM1 lens tube systems
Compatible with SM1 (1.035”-40) threaded components and allows fine adjustment of mounted optics.
• Accepts Ø1" optics up to 8 mm thick
Each tube includes 1 CSK3 standard retaining ring for securing the optic in place.
• Available in multiple lengths with varying adjustment ranges
Extended external threading allows travel along the optical axis to dial in precise positioning.
| Model |
Dimensions |
Thread Depth (Int./Ext.) |
Max Adjustment Range |
Weight |
Thread Type |
Material |
| CSM1-T13 |
Ø30.5 mm × 24.6 mm |
10.7 mm / 12.5 mm |
9.0 mm |
11.4 g |
SM1 (1.035"-40) |
7075 Aluminum |
| CSM1-T26 |
Ø30.5 mm × 37.3 mm |
10.7 mm / 25.4 mm |
21.9 mm |
14.5 g |
SM1 (1.035"-40) |
7075 Aluminum |
| CSM1-T39 |
Ø30.5 mm × 50.0 mm |
10.7 mm / 38.0 mm |
34.5 mm |
17.2 g |
SM1 (1.035"-40) |
7075 Aluminum |
