Description
Introducing our high-performance 3.5mm F2.5 M12 balanced wide-angle pinhole lens, purpose-engineered for high-density covert surveillance and discrete embedded hardware frameworks. Standing out in the premium hidden optics category, this pinhole board lens hits the absolute sweet spot between wide-area coverage and linear distortion control, offering a clear 80° horizontal field of view. Featuring an ultra-short 12mm Total Track Length (TTL) and a micro-head conical profile, it captures sweeping, identity-verified megapixel imagery through microscopic structural gaps, making it the premier choice for financial terminals, smart intercoms, and secure automated kiosks.
Product Highlights
- Optimized 80° Wide-Angle Perspective: The 3.5mm fixed focal length expands the horizontal view to an exact 80 degrees, allowing you to capture vital peripheral details that standard 3.7mm pinholes cut off.
- Ultra-Flat 12mm Mechanical Frame: The hyper-compressed 12mm TTL optical length resolves strict clearance issues, slipping effortlessly into zero-tolerance housings and slim panel enclosures.
- Excellent Linear Distortion Control: Unlike aggressive 2.5mm fisheye alternatives, this optical glass layout strictly controls edge bowing, keeping straight lines flat and ensuring high compatibility with facial recognition algorithms.
- Micro-Cone Needle-Nose Tip: Designed with a specialized highly-tapered cone barrel, allowing the entire physical optical block to remain perfectly invisible behind a tiny pre-drilled panel hole for absolute hidden surveillance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/3″ |
| Focal Length | 3.5mm (Balanced Wide Angle) |
| Field of View (F.O.V.) | Diagonal 100° / Horizontal 80° / Vertical 60° |
| Resolution | Megapixel (MP) |
| Aperture | F2.5 (Fixed Iris) |
| Mount Type | M12 X 0.5 (Standard Micro Board Mount) |
| Focus Control | Manual |
| Zoom Control | Fixed |
| Total Track Length (TTL) | 12 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 3.5mm balanced pinhole lens is explicitly built for high-security commercial networks, asset tracking, and remote industrial lens data logging. Offering a highly practical 80-degree horizontal viewpoint, it serves as the ultimate optical center for smart vending machines, banking automated teller machines (ATMs), and secure residential video intercom faceplates where capturing the full face and upper torso of a person is mandatory for forensic logging. In modern manufacturing and machine vision lens setups, its flat 12mm thickness allows it to be embedded inside compact sorting machine frames or automated retail kiosk cabinets, monitoring critical system components through micro-holes while remaining completely safe from external dust, moisture, or impacts.
Compatible Device List
- Perfectly optimized for high-sensitivity 1/3-inch CMOS image sensors (including Sony, OmniVision, and SmartSens series).
- Direct fit for M12 hidden mini-camera modules, UHD wireless network IPC modules, and Tuya-powered smart smart-home peep-hole units.
- Ideal for integration into custom industrial machine vision enclosures, smart parcel lockers, and undercover tactical gear housings.
- 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 balanced wide-angle covert surveillance and premium kiosk biometric tracking applications.”
Frequently Asked Questions
Q: Why is 3.5mm considered a “balanced” alternative to 2.8mm and 3.7mm pinhole lenses?
A: In hidden security setups, a 2.8mm lens can sometimes create too much fisheye distortion on the edges, while a 3.7mm lens can feel too narrow for tight rooms. This 3.5mm pinhole lens delivers an exact 80° horizontal perspective, giving you a wider framing than the 3.7mm model while maintaining flat, distortion-free lines that are much cleaner than a 2.8mm model.
A: In hidden security setups, a 2.8mm lens can sometimes create too much fisheye distortion on the edges, while a 3.7mm lens can feel too narrow for tight rooms. This 3.5mm pinhole lens delivers an exact 80° horizontal perspective, giving you a wider framing than the 3.7mm model while maintaining flat, distortion-free lines that are much cleaner than a 2.8mm model.
Q: Does this 3.5mm lens cause vignetting or dark corners on a 1/3″ sensor?
A: Not at all. This lens is fully optimized for the 1/3″ image format. Its optical circle perfectly matches the active area of 1/3″ sensor chips, ensuring consistent brightness, excellent contrast, and sharp details from the center out to the furthest corners.
A: Not at all. This lens is fully optimized for the 1/3″ image format. Its optical circle perfectly matches the active area of 1/3″ sensor chips, ensuring consistent brightness, excellent contrast, and sharp details from the center out to the furthest corners.
Q: Why is the 12mm TTL important for embedded product designers?
A: The 12mm Total Track Length (TTL) confirms that the lens has an incredibly low physical profile. This allows your engineering team to design ultra-thin faceplates or position the camera sensor module inside exceptionally shallow cavities where standard board lenses would physically stick out.
A: The 12mm Total Track Length (TTL) confirms that the lens has an incredibly low physical profile. This allows your engineering team to design ultra-thin faceplates or position the camera sensor module inside exceptionally shallow cavities where standard board lenses would physically stick out.
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 collar.
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 collar.
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.
