M12 2.6mm Fisheye Lens
The M12 2.6mm Fisheye Lens (Model PL-WA02620C-M12) is a compact wide-angle optic engineered for 1/2.9-inch board cameras. With a 2.6mm focal length, it delivers a classic 170° diagonal, 130° horizontal, and 65° vertical field of view. Featuring a 2G2P optical construction, an F2.0 fixed aperture, and a short 20.0mm barrel, it easily fits slim bullet, dome, and action-camera housings. The lens offers a 68% relative illumination and CRA below 21.5°, making it an economical choice for security integrators, drone builders, and volume OEM projects.
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Product Description
M12 2.6mm Fisheye Lens
PL-WA02620C-M12 engineered by Shanghai SILK Optical Technology. A compact wide-angle optic developed for 1/2.9-inch board cameras. Pairing a 2.6mm focal length with a 170° diagonal view, it lets one sensor cover an entire room, vehicle cabin, or drone footprint without stitching.
Technical Specifications
| NO. | ITEM | CONTENT |
|---|---|---|
| 1 | TTL (Total Track Length) | 20.0 ± 0.2 mm |
| 2 | EFL (Effective Focal Length) | 2.6 ± 5% mm |
| 3 | F/NO (Aperture) | 2.0 ± 5% |
| 4 | BFL (Back Focal Length) | 5.4 mm |
| 5 | CONSTRUCTION | 2G2P |
| 6 | MAX IMAGE CIRCLE | Φ 6.7 mm |
| 7 | For Sensor | 1/2.9" |
| 8 | Field of View (Diagonal) | 170° |
| 9 | Field of View (Horizontal) | 130° |
| 10 | Field of View (Vertical) | 65° |
| 11 | TV Distortion | -20.0% |
| 12 | Relative Illumination | 68.0% |
| 13 | CRA (Chief Ray Angle) | < 21.5° |
| 14 | Mount (Interface) | M12 |
Optical Performance & Geometry
Extreme 170° Coverage
The 170-degree diagonal, 130-degree horizontal, and 65-degree vertical coverage makes this lens a one-shot overview optic for rooms, corridors, cabins, and drones. The horizontal angle suits entrance and mirror cameras, while the vertical angle reaches from floor to ceiling in narrow halls.
Brightness & Thermal Stability
F2.0 with 68% relative illumination keeps corner brightness even, performing well in dim lobbies and shaded cabins. The glass-plastic construction gives this S-mount lens crisp central resolution and stable focus across temperature swings, while multicoated surfaces suppress flare.
Application Matrix
Surveillance & Security
Dome, bullet, and turret IP cameras get full-room coverage. Wide horizontal angle suits corridors, stairwells, and warehouses.
Action Cams & Wearables
Helmet and body-worn cameras use this short-focus lens for dramatic first-person footage. Fits small sensors.
Automotive & Fleet
Dash cams and telematics capture the full lane, cabin interior, and side traffic for collision analysis.
Drone & FPV Systems
FPV racers and payload cameras record a broad ground footprint in a single pass, keeping flight time low.
Smart Home & IoT
Doorbell and baby monitors identify faces and parcels while keeping the whole room in view.
Machine Vision
Production-line cameras cover a work envelope without an external wide-angle adapter, keeping color edges clean.
ShangHai SILK Optical Technology CO., LTD supplies the PL-WA02620C-M12 with 2D/3D drawings, matched M12 holders, MTF curves, and reliability test reports. For inquiries, please contact our engineering team.
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