Description
Introducing our high-performance 4.2mm F2.8 M12 ultra-short macro pinhole lens, purpose-built for zero-clearance hardware embedding and close-up covert surveillance applications. Shuttering industry limitations, this specialized short-TTL pinhole board lens features a record-breaking 11mm Total Track Length (TTL) while focusing flawlessly at a point-blank 0.1m minimum object distance (M.O.D.). Delivering a tight 64° horizontal field of view with near-zero distortion, it captures razor-sharp, identity-verified megapixel video just centimeters away from the target through microscopic openings, making it the premier choice for biometric palm-print scanners, micro-payment kiosks, and embedded inspection gear.
Product Highlights
- Extreme 10cm Ultra-Macro Focus: Features an upgraded M.O.D. of 0.1 meters, enabling the hidden camera to capture crisp, magnified images of text, codes, and biometrics at point-blank range.
- Ultimate 11mm Flat Footprint: The hyper-compressed 11mm TTL optical length resolves strict clearance challenges in low-profile electronic housing, sitting completely flush inside slim enclosures.
- 4.2mm Long-Focal Precision View: The specialized 4.2mm fixed focal length restricts the horizontal frame to a tight 64° perspective, pulling the target into a concentrated frame while filtering out background noise.
- Zero-Distortion Optical Array: Highly calibrated to suppress aggressive edge bending, keeping facial features and barcodes perfectly linear to heavily assist local AI identification algorithms.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/3″ |
| Focal Length | 4.2mm (Miniature Long-Focal Macro Array) |
| Field of View (F.O.V.) | Diagonal 80° / Horizontal 64° |
| Resolution | Megapixel (MP) |
| Aperture | F2.8 (Fixed Iris, Optimized Depth of Field) |
| Mount Type | M12 X 0.5 (Standard Micro Board Mount) |
| Focus Control | Manual |
| Zoom Control | Fixed |
| Total Track Length (TTL) | 11 mm (Extreme Low-Profile Layout) |
| Minimum Object Distance (M.O.D.) | 0.1 m (Extreme Close-Up Optimization) |
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 4.2mm ultra-short pinhole lens is explicitly engineered for point-blank biometric verification, high-security currency tracking, and precision 工业镜头 (industrial lens) data logging. Offering a highly flat 64-degree horizontal perspective with a rare 10cm close-up focus range, it excels as the core optical sensor for non-contact palm-print / iris recognition terminals, desktop micro-payment kiosks, and automated safe-deposit lockers where authentication occurs immediately adjacent to the lens head. In modern factory automation and machine vision lens setups, its flat 11mm form factor allows it to be embedded flush inside slim conveyor-belt side rails or tiny robotic knuckles, tracking delicate close-up sorting processes or scanning micro-barcodes through small panel drill holes with zero edge distortion.
Compatible Device List
- Perfectly optimized for high-sensitivity 1/3-inch CMOS image sensors (including Sony, OmniVision, and SmartSens series).
- Direct fit for ultra-short M12 hidden camera modules, close-range scanning IPC board assemblies, and Tuya-powered smart smart-home devices.
- Ideal for integration into custom 工业镜头 (industrial lens) enclosures, medical diagnostics terminals, and secure document verification instruments.
- 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 extreme close-up macro terminal security and low-profile micro pinhole surveillance applications.”
Frequently Asked Questions
Q: What makes this 4.2mm lens unique compared to standard 4.2mm pinhole lenses?
A: Standard 4.2mm lenses require long barrels (TTL > 15mm) and only focus past 30cm. This model utilizes high-refractive glass to compress the TTL down to 11mm while unlocking an ultra-short 0.1m focus distance for close-up scanning.
A: Standard 4.2mm lenses require long barrels (TTL > 15mm) and only focus past 30cm. This model utilizes high-refractive glass to compress the TTL down to 11mm while unlocking an ultra-short 0.1m focus distance for close-up scanning.
Q: Does the tighter F2.8 aperture compromise hidden tracking performance?
A: No, F2.8 expands the Depth of Field (DoF). In biometric kiosks, this ensures targets moving slightly closer or further away from the hidden micro-aperture remain crisply in focus, reducing AI recognition errors.
A: No, F2.8 expands the Depth of Field (DoF). In biometric kiosks, this ensures targets moving slightly closer or further away from the hidden micro-aperture remain crisply in focus, reducing AI recognition errors.
Q: Will this 4.2mm lens cause dark corners (vignetting) on a 1/3″ sensor chip?
A: Not at all. Despite the hyper-compressed 11mm profile, the optical circle is meticulously calibrated to fully cover the active area of 1/3″ image format sensors, ensuring uniform edge-to-edge brightness.
A: Not at all. Despite the hyper-compressed 11mm profile, the optical circle is meticulously calibrated to fully cover the active area of 1/3″ image format sensors, ensuring uniform edge-to-edge brightness.
Q: Is the focus on this micro M12 pinhole lens adjustable?
A: Yes. By rotating the lens within its thread on the M12 mount board, you can adjust the focus manually for targets starting from just 0.1 meters away up to infinity, then lock it using an M12 retaining ring.
A: Yes. By rotating the lens within its thread on the M12 mount board, you can adjust the focus manually for targets starting from just 0.1 meters away up to infinity, then lock it using an M12 retaining ring.
Q: Can we order this pinhole lens with built-in 940nm IR-pass filtering?
A: Yes. We provide extensive OEM customization to factory-install specific 850nm or 940nm IR filters to match your invisible infrared night-vision or laser scanning setups.
A: Yes. We provide extensive OEM customization to factory-install specific 850nm or 940nm IR filters to match your invisible infrared night-vision or laser scanning setups.
