Best C-Mount Extension Tubes for CCTV Cameras and Lenses
Discover top C-Mount extension tubes and adapters designed to extend focal distance, adjust working distance, and enable CS-mount cameras to use C-mount lenses. This guide reviews five reliable options with a focus on durability, compatibility, and value for CCTV and industrial cameras.
| Product | Common Sizes | Material | Compatibility |
|---|---|---|---|
| Camera C-Mount Lens Adapter ZCZQC 5mm | 5mm | Aluminum | C-Mount to CS-Mount |
| 1mm 2mm 5mm 7mm … 50mm CS Extension Tube Ring | 1mm–50mm (range) | Aluminum | C-Mount Lens to CS-Mount Camera |
| C-Mount Extension Tube Adapter C-CS 40mm | 40mm | Black Aluminum | C-Mount Lens to CS-Mount Camera |
| C-Mount Extension Tube Adapter C-CS 20mm | 20mm | Black Aluminum | C-Mount Lens to CS-Mount Camera |
| Evertech 4pcs 5mm Extension Tube | 5mm | Aluminum | CS-Mount Adaptation |
Camera C-Mount Lens Adapter ZCZQC 5mm C to CS Extension Tube
The ZCZQC 5mm extension tube is designed to bridge C-mount lenses with CS-mount cameras. Crafted from aluminum, it emphasizes durability with smooth threads and precise machining. The outer diameter measures 30 mm, inner diameter 25 mm, and thickness 9 mm, making it a compact spacer suitable for compact CCTV and industrial cameras. This 5 mm extension is ideal for adjusting working distance and can help achieve sharper focus on close-up subjects or tightly framed surveillance scenarios.
Features include sturdy construction, clear threading, and a compact form factor that minimizes weight while maintaining mechanical reliability. It is a practical accessory for surveillance setups where a small extension is needed to align the focal plane between lens and sensor. Suitable for a range of CCTV and security camera installations that require a modest C-to-CS conversion.
C-Mount to CS-Mount Lens Adapter Ring (1mm–50mm)
This versatile adapter ring covers a broad range of extension options from 1 mm up to 50 mm, enabling C-mount lenses to be used on CS-mount CCTV cameras. It is designed as a simple between-lens-and-camera accessory, offering a straightforward solution to extend the working distance for surveillance installations, industrial cameras, or any CS-mount system requiring a C-mount lens interface.
Key advantages include compatibility with a wide variety of CCTV cameras, aluminum construction for durability, and the flexibility to select the exact extension length needed for precise framing. The kit-like aspect makes it a practical choice when testing different focal distances to optimize focus and field of view in security deployments.
C-Mount Extension Tube Adapter C-CS 40mm
This C-CS extension tube offers a 40 mm spacer to convert C-mount lenses for CS-mount cameras. Constructed from black aluminum, it serves as a robust spacer that can significantly alter working distance and magnification. The 40 mm size is well-suited for applications where a moderate increase in image distance is required, such as close-up surveillance or macro-focused CCTV tasks.
Designed for wide compatibility with CCTV cameras, it emphasizes reliable threading and a secure fit. It is a practical choice for installations that demand a predictable, repeatable extension with minimal bulk, while preserving image quality and mechanical integrity.
C-Mount Extension Tube Adapter C-CS 20mm
This 20 mm C-to-CS extension tube provides a mid-range spacer for expanding the gap between lens and camera in CS-mount systems. Built from black aluminum, it balances durability with a lightweight profile, making it suitable for portable CCTV setups or temporary deployments where lens-to-sensor distance must be adjusted for optimal focus or macro capture.
It supports most CCTV cameras that accept CS-mount accessories, delivering a straightforward, repeatable mounting interface. The 20 mm option is a practical middle ground between shorter and longer extensions, enabling flexible framing in diverse surveillance environments.
Evertech 4pcs 5mm C-Mount to CS Extension Tube Set
The Evertech edition includes four 5 mm extension tubes designed to facilitate quick adjustments between C-mount lenses and CS-mount cameras. This set is aimed at CCTV and security camera deployments where a compact, uniform spacer is advantageous for achieving precise focus and framing across multiple cameras or lenses.
Key features include a dedicated 5 mm extension that provides a reliable, repeatable distance change. The aluminum construction ensures durability in field environments, making it suitable for installations requiring consistent optical alignment across several units or long-term surveillance setups.
Buying Guide: Key Purchase Considerations
- Mount compatibility: Confirm C-mount lenses and CS-mount cameras are supported; ensure the extension tube or adapter matches the lens thread and camera mount standard.
- Extension length needs: Choose the length to achieve the desired working distance and magnification. Short extensions suit close-focus tasks, while longer extensions enable macro-like framing.
- Material and build quality: Aluminum bodies offer durability and stable threading. Check for smooth screw threads to avoid cross-threading and wear over time.
- Precision and alignment: Look for products with machined tolerances and secure locking features to maintain optical alignment under vibration or outdoor exposure.
- Multiple sizes vs single-use: Multi-size sets reduce the need for separate purchases and let you experiment with different distances for optimal focus.
- Application scope: Consider whether you need a universal adapter for CCTV, security cameras, or industrial imaging, and verify lens compatibility for your specific model.
- Weight and portability: Lighter adapters benefit portable surveillance kits and handheld testing setups, especially in field installations.
- Price-to-value: Compare the number of extensions in a set against the build quality and warranty coverage to determine true value.
When selecting an extension tube or adapter, assess the specific camera and lens configuration you intend to use, the required working distance, and environmental conditions. A modular set can provide flexibility for future upgrades or changes in your surveillance system, while a single, precision-made adapter can offer dependable performance for a fixed setup.