CSB2 Series – Ø2" Lens Tubes, Female-Female
• SM2 (2.035"-40) internal threads for mounting Ø2 inch (Ø50.8 mm) optics
• Unlike CSA2 stacking tubes, optics can be accessed from both ends
• Stackable using tube-to-tube coupling adapters
• Connects two SM2 external threaded components
• Directly compatible with 60 mm cage system
• Can be used as a light-tight housing for beam blocking or optical isolation
The CSB2 series lens tubes are designed for compact optical assemblies. These internally threaded tubes feature open ends without flanges, allowing access to mounted optics from either side. When stacked with SM2 coupling components, they support seamless modular integration with other SM2-threaded elements and 60 mm cage assemblies, ideal for complex opto-mechanical builds.
CSA2 Series – Ø2" Stackable Lens Tubes, Male-Female
• SM2 (2.035"-40) internal threads for mounting Ø2 inch (Ø50.8 mm) optics
• Dual-end internal and external threads for modular stacking
• Stackable design enables construction of multi-element optical systems
• Compatible with 60 mm cage systems
• Can be used as light-tight housings to isolate optical paths
The CSA2 series Ø2 inch lens tubes are designed for rapid assembly of compact, modular optical setups. With their stackable architecture and SM2 internal/external threading on both ends, these tubes can be connected to other SM2 components with ease—facilitating the creation of intricate opto-mechanical systems with light-blocking integrity.
CSA2-V Series – Ø2" Visual Lens Tubes, Male-Female
• Easy access to optical components without disassembly
• 360° rotatable dustproof sliding cover to protect optical elements
• Compatible with 60 mm cage systems; stackable design for multi-element systems
• Dual openings allow quick optical adjustment during setup
The CSA2-V series lens tubes are ideal for building compact, light-blocking optical assemblies. Each tube features dual access windows, enabling easy and flexible adjustment of internal optics without disassembly—especially useful when configuring complex opto-mechanical systems.
Common Specifications
Outer Diameter: Ø59.7 mm
Thread Type: SM2 (2.035"-40), internal & external
Material: 7075 aluminum alloy
| Model |
Dimensions (Ø × L) |
Tube Height |
Weight |
| CSA2-40V |
Ø59.7 mm × 43.8 mm |
40 mm |
60.1 g |
| CSA2-50V |
Ø59.7 mm × 53.8 mm |
50 mm |
69.0 g |
| CSA2-60V |
Ø59.7 mm × 63.8 mm |
60 mm |
79.8 g |
