Varifocal 622mm M12 CCTV Lens for 1/2.5 inch Sensors, 5MP, F1.6 A compact varifocal lens designed for security cameras that use 1/2.5 inch sensors. Provides flexible field of view from 6 to 22 mm and supports up to 5MP resolution, making it suitable for IP and AHD systems with CMOS or CCD sensors. Key benefits Adjustable framing: 6 to 22 mm varifocal range lets you set the field of view from wide to tele without changing the lens. Simplifies installation and reduces the need for multiple lenses. Better lowlight capture: Bright F1.6 aperture improves light gathering compared to smaller aperture lenses, helping preserve detail in dim conditions. resolution support: Optics rated for 5MP maintain image clarity on 4MP and 5MP cameras, enabling accurate identification and monitoring. Easy mounting: Standard M12 mount fits a wide range of compact security cameras and modules for straightforward replacement or upgrades. Broad compatibility: Works with common 1/2.5 inch CMOS and CCD sensors and integrates with IP and AHD camera platforms. Specifications at a glance Sensor format: 1/2.5 inch Focal length: 6 22 mm (varifocal) Aperture: F1.6 Mount: M12 Resolution support: up to 5MP Compatible sensor types: CMOS and CCD Camera types: Security IP and AHD cameras How this lens solves common problems Covers multiple surveillance needs with a single lens, avoiding costly lens swaps when camera coverage requirements change. Delivers useful lowlight performance for overnight or indoor environments without relying solely on camera gain or IR. Maintains resolution and detail for identification tasks on cameras rated 4MP and 5MP. Practical applications Entrance and lobby monitoring: Start with a wider view for general coverage, then tighten the zoom to focus on faces or credentials at points of entry. Perimeter and parking surveillance: Use the tele end of the zoom to monitor longer distances while keeping the option to widen the view for situational awareness. Retail and aisle coverage: Adjust framing to cover entire aisles or focus on specific display areas or checkout lanes for clearer footage. Installation notes Designed for manual adjustment of focal length and focus. Confirm camera accepts M12 lenses and uses a 1/2.5 inch sensor format. Compatible with 4MP and 5MP camera systems; check camera firmware and housing clearance for M12 mounts before installation. This varifocal lens provides a flexible, resolution option for common security camera setups that require adjustable framing and reliable image detail in a compact M12 package.