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- Fixed Focal Length: 4mm focal length providing a wide-angle field of view suitable for close-range imaging and surveillance applications.
- Variable Aperture Range: F1.2 to F64, offering exceptional flexibility from high light sensitivity to deep depth of field control.
- Auto Iris (AI) Mechanism: Automatically adjusts the aperture based on incoming light intensity, maintaining consistent image brightness and preventing overexposure or underexposure.
- High Optical Precision: Designed with Tokina’s advanced optical glass elements for minimal distortion, high contrast, and superior edge-to-edge sharpness.
- Compact and Durable Construction: Engineered for reliability in continuous operation environments such as security cameras, machine vision systems, and industrial inspection setups.
- C-Mount Compatibility: Standardized mount interface for easy integration with a wide range of CCTV, industrial, and digital imaging cameras.
- Made in Japan: Ensures high manufacturing quality, precision assembly, and long-term optical stability.
- Variable Aperture Range: F1.2 to F64, offering exceptional flexibility from high light sensitivity to deep depth of field control.
- Auto Iris (AI) Mechanism: Automatically adjusts the aperture based on incoming light intensity, maintaining consistent image brightness and preventing overexposure or underexposure.
- High Optical Precision: Designed with Tokina’s advanced optical glass elements for minimal distortion, high contrast, and superior edge-to-edge sharpness.
- Compact and Durable Construction: Engineered for reliability in continuous operation environments such as security cameras, machine vision systems, and industrial inspection setups.
- C-Mount Compatibility: Standardized mount interface for easy integration with a wide range of CCTV, industrial, and digital imaging cameras.
- Made in Japan: Ensures high manufacturing quality, precision assembly, and long-term optical stability.
1. Product Overview
Product Name: Tokina Lens 4mm F1.2~64 Auto Iris (AI)
Model Number: TC0412AI
Series: TC Series – Professional Fixed Focal Length Lenses
Article Number: TC0412AI
Manufacturer: Tokina Co., Ltd.
Country of Origin: Japan
The Tokina TC0412AI is a precision-engineered optical lens designed for professional imaging, surveillance, and industrial vision systems. Manufactured by Tokina, a globally recognized Japanese optics company, this model represents a high-performance fixed focal length lens optimized for clarity, light sensitivity, and automatic exposure control. The lens integrates an Auto Iris (AI) mechanism, enabling dynamic adjustment of aperture in response to changing light conditions, ensuring consistent image brightness and optimal exposure across a wide range of environments.
2. Key Features
- Fixed Focal Length: 4mm focal length providing a wide-angle field of view suitable for close-range imaging and surveillance applications.
- Variable Aperture Range: F1.2 to F64, offering exceptional flexibility from high light sensitivity to deep depth of field control.
- Auto Iris (AI) Mechanism: Automatically adjusts the aperture based on incoming light intensity, maintaining consistent image brightness and preventing overexposure or underexposure.
- High Optical Precision: Designed with Tokina’s advanced optical glass elements for minimal distortion, high contrast, and superior edge-to-edge sharpness.
- Compact and Durable Construction: Engineered for reliability in continuous operation environments such as security cameras, machine vision systems, and industrial inspection setups.
- C-Mount Compatibility: Standardized mount interface for easy integration with a wide range of CCTV, industrial, and digital imaging cameras.
- Made in Japan: Ensures high manufacturing quality, precision assembly, and long-term optical stability.
3. Technical Specifications
- Model: TC0412AI
- Focal Length: 4mm (fixed)
- Aperture Range: F1.2 to F64 (auto-adjustable via AI mechanism)
- Iris Type: Auto Iris (AI) – electronically controlled aperture adjustment
- Mount Type: C-Mount (standard 1-inch thread, 32 TPI)
- Image Format Compatibility: 1/3" and 1/2" CCD/CMOS sensors (typical for surveillance and industrial cameras)
- Field of View (approximate):
- Horizontal: ~90° (1/3" sensor)
- Vertical: ~67° (1/3" sensor)
- Minimum Object Distance (MOD): Typically 0.3m or less (depending on camera sensor size)
- Focus Type: Manual focus with precision adjustment ring
- Iris Control: Auto Iris with DC or Video drive (depending on camera interface)
- Lens Construction: Multi-element optical glass assembly with anti-reflective coatings
- Housing Material: Metal alloy (aluminum or brass) for durability and heat dissipation
- Finish: Black anodized matte finish to minimize reflections
- Dimensions (approximate):
- Length: 40–50 mm (depending on mount configuration)
- Diameter: 30–35 mm
- Weight: Approximately 80–120 g
- Operating Temperature Range: -10°C to +50°C (typical for surveillance-grade optics)
- Country of Manufacture: Japan
4. Functionality
The Tokina TC0412AI operates as a wide-angle fixed focal length lens designed for cameras requiring automatic exposure control. The Auto Iris (AI) mechanism dynamically adjusts the aperture in real time, responding to variations in ambient lighting. This ensures consistent image brightness whether the camera is used indoors, outdoors, or in environments with fluctuating illumination.
Use Cases and Applications:
- Security and Surveillance Systems: Ideal for CCTV cameras monitoring wide areas such as entrances, parking lots, or retail spaces.
- Machine Vision and Industrial Inspection: Provides clear, distortion-free imaging for automated inspection, robotics, and quality control systems.
- Broadcast and Video Production: Suitable for fixed-position cameras requiring stable exposure and wide coverage.
- Traffic Monitoring and Public Safety: Effective in outdoor installations where lighting conditions vary throughout the day.
- Scientific and Research Imaging: Used in laboratory setups requiring consistent optical performance and precise light control.
Compatibility:
The lens is compatible with C-Mount cameras, including analog CCTV, digital IP cameras, and industrial vision systems. It can be used with both CCD and CMOS sensors, typically up to 1/2" format. The auto iris function requires a compatible camera providing the appropriate control signal (DC or video drive).
5. Components & Accessories
Included Items:
- Tokina TC0412AI Lens (main unit)
- Rear lens cap (C-Mount protective cover)
- Front lens cap (optical protection during transport)
- User documentation or specification sheet (depending on distributor)
Optional Accessories:
- C-Mount extension rings for focus adjustment or macro imaging
- Lens mounts or adapters for non-C-Mount cameras
- Protective lens hood or filter (threaded front element, typically M27–M30)
- Auto Iris control cable (if not integrated with camera)
- Cleaning kit for optical maintenance
Connectors:
- Standard C-Mount thread for camera attachment
- Auto Iris connector (2-pin or 4-pin, depending on AI type) for power and control signal interface
6. Installation & Setup
Requirements:
- Compatible C-Mount camera with Auto Iris control output
- Stable mounting platform or camera housing
- Power supply for camera and iris control (if required)
Mounting Options:
- Direct C-Mount attachment to camera body
- Use of extension tubes or adapters for back-focus adjustment
- Integration into camera housings or enclosures for environmental protection
Configuration Steps:
1. Mount the Lens: Screw the TC0412AI onto the camera’s C-Mount thread until secure.
2. Connect Auto Iris Cable: Attach the AI connector to the camera’s iris control port.
3. Adjust Focus: Manually rotate the focus ring to achieve sharpness at the desired distance.
4. Power On and Test: Apply power to the camera; the auto iris will adjust automatically to ambient light.
5. Fine-Tune Settings: If the camera supports iris level adjustment, calibrate for optimal exposure balance.
Maintenance Recommendations:
- Keep optical surfaces clean using lens-safe materials.
- Avoid exposure to moisture or corrosive environments.
- Periodically inspect the iris mechanism for smooth operation.
7. Performance & Capabilities
Optical Performance:
The TC0412AI delivers high-resolution imaging with minimal chromatic aberration and geometric distortion. The wide aperture (F1.2) ensures excellent low-light performance, capturing bright, detailed images even under dim illumination. At narrower apertures (up to F64), the lens provides extensive depth of field, maintaining focus across varying object distances.
Speed and Responsiveness:
The Auto Iris mechanism reacts rapidly to changes in light intensity, ensuring smooth transitions without flicker or lag. This is particularly beneficial in outdoor or mixed-light environments.
Capacity and Efficiency:
- Light Transmission: Optimized for high transmittance through multi-coated glass elements.
- Exposure Range: Capable of handling extreme lighting contrasts, from bright daylight to low-light conditions.
- Operational Efficiency: Designed for continuous operation in surveillance and industrial systems with minimal maintenance.
Limitations:
- Fixed focal length limits zoom capability; framing adjustments require physical repositioning.
- Auto Iris functionality depends on camera compatibility (requires appropriate control signal).
- Not weather-sealed; external housing recommended for outdoor use.
8. Standards & Compliance
Certifications and Compliance:
- Optical Manufacturing Standards: Conforms to Tokina’s internal quality assurance and ISO 9001-certified production processes.
- RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances Directive, ensuring environmentally responsible materials.
- CE Marking (where applicable): Meets European safety and electromagnetic compatibility requirements when integrated into compliant camera systems.
- Industry Standards:
- C-Mount interface per ISO 10935 standard
- Auto Iris control per standard CCTV specifications (DC or video drive)
Environmental and Safety Compliance:
- Designed for safe operation within standard temperature and humidity ranges.
- Non-toxic materials used in lens coatings and housing.
9. Additional Information
Warranty:
Typically covered by Tokina’s standard manufacturer warranty (1–2 years, depending on region and distributor). The warranty covers defects in materials and workmanship under normal use conditions.
Support:
Tokina provides global technical support through authorized distributors and service centers. Documentation, datasheets, and installation guides are available through Tokina’s official website or partner networks.
Maintenance:
- Regular cleaning of front and rear elements recommended using optical-grade microfiber cloths.
- Avoid disassembly; internal components are factory-calibrated.
- Store in a dry, dust-free environment when not in use.
Updates and Compatibility:
The TC0412AI is part of Tokina’s ongoing line of professional imaging lenses. Future firmware or hardware updates are not required, as the lens operates mechanically and optically without digital components. Compatibility with new camera models is maintained through adherence to the C-Mount standard.
Summary:
The Tokina TC0412AI 4mm F1.2~64 Auto Iris Lens is a professional-grade optical component engineered for precision imaging in surveillance, industrial, and scientific applications. Its combination of wide-angle coverage, high light sensitivity, and automatic exposure control makes it a versatile choice for environments with variable lighting. Built with Tokina’s renowned optical craftsmanship and manufactured in Japan, the TC0412AI delivers consistent performance, durability, and image quality across a wide range of professional imaging systems.
Approximate Length: ~3,000 tokens (~12,000 characters)
Optimized Keywords: Tokina TC0412AI, 4mm lens, F1.2~64, Auto Iris, C-Mount, surveillance lens, industrial optics, machine vision, made in Japan, Tokina lens specifications, wide-angle AI lens.
Product Name: Tokina Lens 4mm F1.2~64 Auto Iris (AI)
Model Number: TC0412AI
Series: TC Series – Professional Fixed Focal Length Lenses
Article Number: TC0412AI
Manufacturer: Tokina Co., Ltd.
Country of Origin: Japan
The Tokina TC0412AI is a precision-engineered optical lens designed for professional imaging, surveillance, and industrial vision systems. Manufactured by Tokina, a globally recognized Japanese optics company, this model represents a high-performance fixed focal length lens optimized for clarity, light sensitivity, and automatic exposure control. The lens integrates an Auto Iris (AI) mechanism, enabling dynamic adjustment of aperture in response to changing light conditions, ensuring consistent image brightness and optimal exposure across a wide range of environments.
2. Key Features
- Fixed Focal Length: 4mm focal length providing a wide-angle field of view suitable for close-range imaging and surveillance applications.
- Variable Aperture Range: F1.2 to F64, offering exceptional flexibility from high light sensitivity to deep depth of field control.
- Auto Iris (AI) Mechanism: Automatically adjusts the aperture based on incoming light intensity, maintaining consistent image brightness and preventing overexposure or underexposure.
- High Optical Precision: Designed with Tokina’s advanced optical glass elements for minimal distortion, high contrast, and superior edge-to-edge sharpness.
- Compact and Durable Construction: Engineered for reliability in continuous operation environments such as security cameras, machine vision systems, and industrial inspection setups.
- C-Mount Compatibility: Standardized mount interface for easy integration with a wide range of CCTV, industrial, and digital imaging cameras.
- Made in Japan: Ensures high manufacturing quality, precision assembly, and long-term optical stability.
3. Technical Specifications
- Model: TC0412AI
- Focal Length: 4mm (fixed)
- Aperture Range: F1.2 to F64 (auto-adjustable via AI mechanism)
- Iris Type: Auto Iris (AI) – electronically controlled aperture adjustment
- Mount Type: C-Mount (standard 1-inch thread, 32 TPI)
- Image Format Compatibility: 1/3" and 1/2" CCD/CMOS sensors (typical for surveillance and industrial cameras)
- Field of View (approximate):
- Horizontal: ~90° (1/3" sensor)
- Vertical: ~67° (1/3" sensor)
- Minimum Object Distance (MOD): Typically 0.3m or less (depending on camera sensor size)
- Focus Type: Manual focus with precision adjustment ring
- Iris Control: Auto Iris with DC or Video drive (depending on camera interface)
- Lens Construction: Multi-element optical glass assembly with anti-reflective coatings
- Housing Material: Metal alloy (aluminum or brass) for durability and heat dissipation
- Finish: Black anodized matte finish to minimize reflections
- Dimensions (approximate):
- Length: 40–50 mm (depending on mount configuration)
- Diameter: 30–35 mm
- Weight: Approximately 80–120 g
- Operating Temperature Range: -10°C to +50°C (typical for surveillance-grade optics)
- Country of Manufacture: Japan
4. Functionality
The Tokina TC0412AI operates as a wide-angle fixed focal length lens designed for cameras requiring automatic exposure control. The Auto Iris (AI) mechanism dynamically adjusts the aperture in real time, responding to variations in ambient lighting. This ensures consistent image brightness whether the camera is used indoors, outdoors, or in environments with fluctuating illumination.
Use Cases and Applications:
- Security and Surveillance Systems: Ideal for CCTV cameras monitoring wide areas such as entrances, parking lots, or retail spaces.
- Machine Vision and Industrial Inspection: Provides clear, distortion-free imaging for automated inspection, robotics, and quality control systems.
- Broadcast and Video Production: Suitable for fixed-position cameras requiring stable exposure and wide coverage.
- Traffic Monitoring and Public Safety: Effective in outdoor installations where lighting conditions vary throughout the day.
- Scientific and Research Imaging: Used in laboratory setups requiring consistent optical performance and precise light control.
Compatibility:
The lens is compatible with C-Mount cameras, including analog CCTV, digital IP cameras, and industrial vision systems. It can be used with both CCD and CMOS sensors, typically up to 1/2" format. The auto iris function requires a compatible camera providing the appropriate control signal (DC or video drive).
5. Components & Accessories
Included Items:
- Tokina TC0412AI Lens (main unit)
- Rear lens cap (C-Mount protective cover)
- Front lens cap (optical protection during transport)
- User documentation or specification sheet (depending on distributor)
Optional Accessories:
- C-Mount extension rings for focus adjustment or macro imaging
- Lens mounts or adapters for non-C-Mount cameras
- Protective lens hood or filter (threaded front element, typically M27–M30)
- Auto Iris control cable (if not integrated with camera)
- Cleaning kit for optical maintenance
Connectors:
- Standard C-Mount thread for camera attachment
- Auto Iris connector (2-pin or 4-pin, depending on AI type) for power and control signal interface
6. Installation & Setup
Requirements:
- Compatible C-Mount camera with Auto Iris control output
- Stable mounting platform or camera housing
- Power supply for camera and iris control (if required)
Mounting Options:
- Direct C-Mount attachment to camera body
- Use of extension tubes or adapters for back-focus adjustment
- Integration into camera housings or enclosures for environmental protection
Configuration Steps:
1. Mount the Lens: Screw the TC0412AI onto the camera’s C-Mount thread until secure.
2. Connect Auto Iris Cable: Attach the AI connector to the camera’s iris control port.
3. Adjust Focus: Manually rotate the focus ring to achieve sharpness at the desired distance.
4. Power On and Test: Apply power to the camera; the auto iris will adjust automatically to ambient light.
5. Fine-Tune Settings: If the camera supports iris level adjustment, calibrate for optimal exposure balance.
Maintenance Recommendations:
- Keep optical surfaces clean using lens-safe materials.
- Avoid exposure to moisture or corrosive environments.
- Periodically inspect the iris mechanism for smooth operation.
7. Performance & Capabilities
Optical Performance:
The TC0412AI delivers high-resolution imaging with minimal chromatic aberration and geometric distortion. The wide aperture (F1.2) ensures excellent low-light performance, capturing bright, detailed images even under dim illumination. At narrower apertures (up to F64), the lens provides extensive depth of field, maintaining focus across varying object distances.
Speed and Responsiveness:
The Auto Iris mechanism reacts rapidly to changes in light intensity, ensuring smooth transitions without flicker or lag. This is particularly beneficial in outdoor or mixed-light environments.
Capacity and Efficiency:
- Light Transmission: Optimized for high transmittance through multi-coated glass elements.
- Exposure Range: Capable of handling extreme lighting contrasts, from bright daylight to low-light conditions.
- Operational Efficiency: Designed for continuous operation in surveillance and industrial systems with minimal maintenance.
Limitations:
- Fixed focal length limits zoom capability; framing adjustments require physical repositioning.
- Auto Iris functionality depends on camera compatibility (requires appropriate control signal).
- Not weather-sealed; external housing recommended for outdoor use.
8. Standards & Compliance
Certifications and Compliance:
- Optical Manufacturing Standards: Conforms to Tokina’s internal quality assurance and ISO 9001-certified production processes.
- RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances Directive, ensuring environmentally responsible materials.
- CE Marking (where applicable): Meets European safety and electromagnetic compatibility requirements when integrated into compliant camera systems.
- Industry Standards:
- C-Mount interface per ISO 10935 standard
- Auto Iris control per standard CCTV specifications (DC or video drive)
Environmental and Safety Compliance:
- Designed for safe operation within standard temperature and humidity ranges.
- Non-toxic materials used in lens coatings and housing.
9. Additional Information
Warranty:
Typically covered by Tokina’s standard manufacturer warranty (1–2 years, depending on region and distributor). The warranty covers defects in materials and workmanship under normal use conditions.
Support:
Tokina provides global technical support through authorized distributors and service centers. Documentation, datasheets, and installation guides are available through Tokina’s official website or partner networks.
Maintenance:
- Regular cleaning of front and rear elements recommended using optical-grade microfiber cloths.
- Avoid disassembly; internal components are factory-calibrated.
- Store in a dry, dust-free environment when not in use.
Updates and Compatibility:
The TC0412AI is part of Tokina’s ongoing line of professional imaging lenses. Future firmware or hardware updates are not required, as the lens operates mechanically and optically without digital components. Compatibility with new camera models is maintained through adherence to the C-Mount standard.
Summary:
The Tokina TC0412AI 4mm F1.2~64 Auto Iris Lens is a professional-grade optical component engineered for precision imaging in surveillance, industrial, and scientific applications. Its combination of wide-angle coverage, high light sensitivity, and automatic exposure control makes it a versatile choice for environments with variable lighting. Built with Tokina’s renowned optical craftsmanship and manufactured in Japan, the TC0412AI delivers consistent performance, durability, and image quality across a wide range of professional imaging systems.
Approximate Length: ~3,000 tokens (~12,000 characters)
Optimized Keywords: Tokina TC0412AI, 4mm lens, F1.2~64, Auto Iris, C-Mount, surveillance lens, industrial optics, machine vision, made in Japan, Tokina lens specifications, wide-angle AI lens.
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