Description
Introducing our high-performance 2.1mm F2.4 M12 ultra-wide angle pinhole lens, purpose-engineered for small-format 1/4″ image sensors in discrete IoT frameworks and covert surveillance systems. Standing out in the micro-optics category, this unique pinhole board lens utilizes an ultra-short 2.1mm focal length to project an expansive 99° horizontal field of view onto smaller sensor architectures without causing corner clipping. Featuring a flat 12.29mm Total Track Length (TTL) and a micro-head conical profile, it delivers complete panoramic coverage through a single micro-aperture, making it the premier choice for smart battery cameras, connected door locks, and slim secure terminals.
Product Highlights
- 1/4″ Sensor Panoramic Optimization: Tailored precisely for cost-effective, smaller 1/4-inch CMOS chips, achieving a sweeping 99° Horizontal / 125° Diagonal view without any dark corners or image vignetting.
- Ultra-Flat 12.29mm Short TTL: The highly compressed optical length resolves strict clearance challenges in low-profile electronic housing, sitting perfectly flush inside slim battery-powered devices.
- Bright F2.4 Aperture Performance: Enhances light-gathering capabilities on smaller pixel sensor arrays, keeping video footage crisp and sharp under standard indoor illumination.
- Micro-Cone Needle Silhouette: Built with a highly tapered conical front tip, ensuring the heavy optical body remains entirely hidden behind the panel plane for absolute hidden surveillance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/4″ (Optimized for smaller format CMOS chips) |
| Focal Length | 2.1mm (Ultra-Wide Angle Array) |
| Field of View (F.O.V.) | Diagonal 125° / Horizontal 99° / Vertical 74° |
| Resolution | Megapixel (MP) |
| Aperture | F2.4 (Fixed Iris) |
| Mount Type | M12 X 0.5 (Standard Micro Board Mount) |
| Focus Control | Manual |
| Zoom Control | Fixed |
| Total Track Length (TTL) | 12.29 mm (Ultra-Thin Space-Saving Profile) |
| Minimum Object Distance (M.O.D.) | 0.3 m |
This product is certified by RoHS and ISO9001 quality management system, supports third-party testing, and complies with EU and domestic security equipment access standards, ensuring reliable quality and full compliance.
Applications & Device Compatibility
Core Application Scenarios
This industrial-grade 2.1mm 1/4″ pinhole lens is explicitly designed for wide-area ambient logging, smart-home IoT tracking, and compact industrial lens data recording. Offering a wide 99-degree horizontal perspective, it serves as the ultimate optical sensor for smart electronic door locks, low-power wireless video peepholes, and compact parcel lockers where capturing both the user’s upper body and the immediate wide surroundings using a cost-efficient 1/4″ sensor is non-negotiable. In modern factory automation and machine vision lens setups, its flat 12.29mm form factor allows it to be embedded inside compact electronic equipment rack doors, small battery-powered mobile inspection carts, or robotic junction box housings to monitor overall manual access and system safety through micro-holes.
Compatible Device List
- Perfectly optimized for high-sensitivity 1/4-inch CMOS image sensors (such as specialized small-format Sony, OmniVision, and SmartSens architectures).
- Seamlessly fits low-power M12 wireless mini-camera modules, compact smart doorbell assemblies, and Tuya-powered smart-lock imaging boards.
- Ideal for integration into custom industrial machine vision enclosures, miniature biometric access keypads, and hidden retail kiosks.
- Fully supports factory customization for dual-band pass filters (650nm IR cut / 850nm / 940nm IR pass) to facilitate true invisible infrared nighttime illumination.
“Designed for low-power IoT devices and 1/4″ format panoramic covert surveillance applications.”
Frequently Asked Questions
Q: Why is this 2.1mm pinhole lens specifically optimized for a 1/4″ image format?
A: Standard 1/3″ wide-angle lenses can cause heavy blurring or dark corners when matched with a smaller 1/4″ sensor chip. This lens features a custom internal refractive element layout designed specifically for 1/4″ chips, ensuring that its ultra-short 2.1mm focal length expands into a clean, sharp 99° horizontal field of view with excellent brightness across the whole frame.
A: Standard 1/3″ wide-angle lenses can cause heavy blurring or dark corners when matched with a smaller 1/4″ sensor chip. This lens features a custom internal refractive element layout designed specifically for 1/4″ chips, ensuring that its ultra-short 2.1mm focal length expands into a clean, sharp 99° horizontal field of view with excellent brightness across the whole frame.
Q: Does the wide 99° horizontal frame create an uncontrollable fisheye warping effect?
A: While it provides a sweeping panoramic frame, the optical glass layout is highly calibrated to control image bending. It delivers a much cleaner and more natural edge perspective than generic ultra-wide fisheye board lenses, making it highly effective for indoor security identification.
A: While it provides a sweeping panoramic frame, the optical glass layout is highly calibrated to control image bending. It delivers a much cleaner and more natural edge perspective than generic ultra-wide fisheye board lenses, making it highly effective for indoor security identification.
Q: Why is the 12.29mm TTL critical for smart door locks and IoT engineering?
A: In modern smart battery cameras and digital door locks, space behind the front panel is extremely limited due to the large battery packs. A 12.29mm TTL ensures that the camera module can remain incredibly thin and fit flush against the front shell, preserving precious internal room.
A: In modern smart battery cameras and digital door locks, space behind the front panel is extremely limited due to the large battery packs. A 12.29mm TTL ensures that the camera module can remain incredibly thin and fit flush against the front shell, preserving precious internal room.
Q: Is the focus on this M12 wide-angle pinhole lens adjustable?
A: Yes. It features a manual focus mechanism. By rotating the lens within its thread on the M12 mount board, you can adjust the focus for targets ranging from 0.3 meters away to infinity, then lock it securely using a standard M12 retaining ring.
A: Yes. It features a manual focus mechanism. By rotating the lens within its thread on the M12 mount board, you can adjust the focus for targets ranging from 0.3 meters away to infinity, then lock it securely using a standard M12 retaining ring.
Q: Can we order this pinhole lens with built-in 940nm IR-pass filtering?
A: Yes, we offer extensive OEM/ODM customization. We can factory-install specific IR filters (such as 850nm or 940nm) to match your invisible infrared night-vision setups for true undercover operations.
A: Yes, we offer extensive OEM/ODM customization. We can factory-install specific IR filters (such as 850nm or 940nm) to match your invisible infrared night-vision setups for true undercover operations.
