OKS-3919‑A4‑L650‑AA is high‑performance thread‑free press‑fit wide‑angle lens specially designed for outdoor video doorbell and smart home security camera.
Adopting premium 4G+IR optical structure with strict IR spectral requirements. Average transmittance ≥92% and minimum ≥84%@430‑565nm, realizing true‑color daytime imaging. 2.4mm fixed focal length brings 121° diagonal field of view, ideal for capturing visitor facial features and doorway area.
CRA<15.1° and relative illumination>56% ensure uniform brightness and restrain stray light. F2.0 aperture delivers reliable imaging under dim porch ambient light. IP69K & IP6K waterproof dust‑proof metal barrel withstands high‑pressure water jet, rain splash and dust for outdoor installation. Thread‑free press‑fit design simplifies camera assembly. Compact TTL 14.87mm fits most doorbell camera housing. Wide working temperature‑40℃~+85℃ guarantees stable running for smart doorbell, access control camera and home surveillance modules.
| TTL | 14.87mm |
| Working Temperature | -40 to +85°C |
| Flange Back Length | 1.82mm |
| Relative Illumination | >56% |
| Sensor | 1/4" GC2053 |
| Waterproof Level | IP69K |
| F/NO | F2.0 |
| Construction | 4G |
| Back Focal Length | 3.48mm |
| Max Image Circle | 5.4mm |

Our Video Doorbell Lens is carefully packaged to ensure it arrives in perfect condition. Each lens is securely placed in a protective foam insert within a sturdy, eco-friendly box to prevent any damage during transit.
The packaging includes a user manual and all necessary installation accessories, providing a hassle-free setup experience.
We offer reliable shipping options with tracking available for all orders. Your Video Doorbell Lens will be shipped promptly, with delivery times depending on your location and chosen shipping method.
For international shipments, please be aware of potential customs fees and import taxes that may apply.
Customer satisfaction is our priority, so if you encounter any issues with your order during shipping, please contact our support team for assistance.