![SM Lens Tubes](https://productimages.edmundoptics.com/6630.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Enables Mounting for 25/25.4mm and 12.5/12.7mm Optics
- Ideal for Optical System Creation and Integration
- Continuous SM1 or SM05 Barrel Thread for Mounting Multiple Components
![SM Brass Spacer Rings](https://productimages.edmundoptics.com/6664.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Blackened Brass Construction
- For Precise Spacing Between Optical Components Within SM1 and SM05 Tubes
- Thicknesses from 0.25mm to 50mm Available
![SM Fine Focus Tubes](https://productimages.edmundoptics.com/6714.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Ideal for Variable Spacing Along the Optical Axis of SM1 or SM05 Systems
- Anti-Reflection Processing for Reduced Stray Light
- Built-in Set Screw for Focus Locking
![Tube System Fiber Connector Adapters](https://productimages.edmundoptics.com/7798.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- C-Mount, S-Mount, SM1, and SM05 Threading
- Low Profile Designs for Minimal System Intrusion
- Available for SMA, FC, FC/APC, or ST Fiber Connectors
![SM Lens Tube Drop-In Mounts](https://productimages.edmundoptics.com/10454.jpg?w=305&quality=80)
- Compatible with any SM1 Threaded Lens Tube
- Mounts 5mm to 19.05mm Optical Components
- Drop-In Mounting for Easy Assembly
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