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Specifications
Assembly
Application
Thread Specifications
Feedback
Product Description
- Suitable for building compact optical systems
- Thread configuration: SM1
- Available in three versions: double-ended internal and external threads (SM1-xxA, xxD), internal threads (SM1-xxB), and external threads (SM1-xxC)
- Light-blocking, mounted with Ø25.4 mm optical components
LBTEK lens tubes are commonly used to secure Ø25.4 mm optical components or for light path shading to prevent ambient light from affecting the system. LBTEK's SM1 lens tubes come in three versions: with both internal and external threads (SM1-xxA, SM1-xxD), internal threads only (SM1-xxB), and external threads only (SM1-xxC). The lens tube combinations can be connected to extend the length, facilitating the rapid setup of compact optical systems. By using a retaining ring wrench, the retaining ring can be positioned at the desired location inside the lens tube to separate and secure optical components.
In addition to the standard SM1 lens tubes, LBTEK also offers SM05 and SM2 lens tubes, along with compatible accessories such as lens tube adapters, retaining rings, and retaining ring wrenches.
Attributes
Material6061-T6 Aluminum Alloy
Applicable optical element diameterØ25.4 mm
Thread specificationSM1 Thread
Surface treatmentBlack anodized
SM1 lens sleeve, internal and external threads
- SM1 external threads at one end, SM1 internal threads at the opposite end
- Expandable design allows building multi-component optical systems, includes 1 SM1R retaining ring
- Optional sleeve lengths: 8 mm, 12.5 mm, 25 mm, and 50 mm
The LBTEK internal and external threaded lens sleeve features SM1 external threads on one end and SM1 internal threads on the other, primarily designed for securing optical components with a diameter of Ø25.4 mm. It adopts an expandable design, making it suitable for quickly assembling compact optical systems. Each lens sleeve comes with an SM1R retaining ring for securing optical components. The SM1-8V includes 12.5 mm external threads and an external retaining ring, allowing adjustable connection depth for the lens sleeve. The SM1-50D features external slots, enabling lens position adjustment without removing the retaining ring. After adjustment, rotating the outer sleeve can cover the slots.
SM1 external threads at one end, SM1 internal threads at the opposite end
Product Model | Size | Quantity | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
 | SM1-8A | 8 mm | $11.79 | today | Add Cart | |||
| SM1-8A-P5 New | 8 mm | 5 | $56.05 | today | Add Cart | ||
| SM1-12.5A | 12.5 mm | $12.33 | today | Add Cart | |||
| SM1-12.5A-P5 New | 12.5 mm | 5 | $58.66 | today | Add Cart | ||
| SM1-25A | 25 mm | $13.84 | today | Add Cart | |||
| SM1-25A-P5 New | 25 mm | 5 | $65.78 | today | Add Cart | ||
| SM1-25D | 25 mm | $41.80 | today | Add Cart | |||
| SM1-38A | 38 mm | $15.62 | 5 weeks | Add Cart | |||
| SM1-50D | 50 mm | $45.64 | today | Add Cart | |||
| SM1-50A | 50 mm | $17.13 | today | Add Cart | |||
| SM1-50A-P5 New | 50 mm | 5 | $81.41 | today | Add Cart | ||
| SM1-75D | 75 mm | $53.59 | today | Add Cart | |||
| SM1-75A | 75 mm | $22.07 | today | Add Cart | |||
| SM1-100A | 100 mm | $33.58 | today | Add Cart |
SM1 lens sleeve, with internal threads on both ends
- SM1 internal threads on both ends
- Ideal for mounting Ø25.4 mm optical elements
- Compatible with SM1-xxA, SM1-25C or SM1-12.5T for extending lens tube length
- Includes 2 SM1R retaining rings
The LBTEK internal threaded lens tube features SM1 internal threads on both ends, allowing direct installation and removal of Ø25.4 mm optical components from either side. It can be used in conjunction with SM1-xxA, SM1-25C, or SM1-12.5T to extend the length of the lens tube. Each lens tube comes with two SM1R retaining rings for securing optical components.
Both ends with SM1 internal thread
Product Model | Size | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|
| SM1-8B | 8 mm | $9.46 | today | Add Cart | ||
| SM1-12.5B | 12.5 mm | $12.20 | today | Add Cart | ||
| SM1-25B | 25 mm | $13.84 | today | Add Cart | ||
| SM1-50B | 50 mm | $17.13 | today | Add Cart |
SM1 lens sleeve, external threads on both ends
- SM1 external threads on both ends
- Extends lens tube length by mating with internal-external threads and internal thread sleeves
- Not for direct mounting of optical elements
The LBTEK external threaded lens sleeve has SM1 external threads on both ends, which can be used in conjunction with internal-external threaded and internal threaded lens sleeves to extend the length of the lens sleeve.
Both ends SM1 external thread
Product Model | Size | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|
| SM1-8C | 8 mm | $11.24 | today | Add Cart | ||
| SM1-12.5C | 12.5 mm | $11.24 | today | Add Cart | ||
| SM1-25C | 25 mm | $12.47 | today | Add Cart | ||
| SM1-50C | 50 mm | $15.35 | today | Add Cart |
With C-Mount external thread and SM1 internal thread
- C-Mount external thread, SM1 internal thread
- Introduce fixed spacing to adjust Focal Length (f), improving the magnification of the image system.
- Suitable for mounting Ø25.4 mm Optical Components
- Optional sleeve length: 8, 12.5, 25 mm
LBTEK extension sleeves with C-Mount external threads and SM1 internal threads are used to establish a fixed spacing distance between SM1 threaded systems and C-Mount threaded components (such as CCD Cameras), can accommodate Ø25.4 mm Optical Components, and come with one SM1R retaining ring. The C-Mount thread depth of the extension sleeve is uniformly 4.1 mm. There are two annular grooves near the C-Mount threaded end, making it easy to quickly distinguish it from the SM1 threaded end. Extension sleeves cannot be stacked with each other. If further extension of the optical path is required, it can be achieved by adding C-Mount extension sleeves.
Used in combination with a C-Mount extension tube to extend the optical path
Product Model | Size (mm) | Maximum applicable thickness of optical components | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|
| CSM1-8A New | 8 mm | 5.5 mm | $13.02 | today | Add Cart | ||
| CSM1-12.5A New | 12.5 mm | 10 mm | $13.57 | today | Add Cart | ||
| CSM1-25A New | 25 mm | 22.5 mm | $15.90 | today | Add Cart |
Email: support@lbtek.com
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