Lab microscope accessory lens designed for CCTV and microscope camera applications. 4mm focal length provides a wide angle view while the manual IRIS and zoom focus controls let you fine tune exposure and focus for precise imaging. Key benefits Wide field of view: 4mm focal length gives broad coverage, useful for capturing larger areas or whole slides without repositioning. Bright optics: 1:2.0 maximum aperture helps maintain image brightness in low light situations. Precise control: manual IRIS and zoom focus let you set exposure and focus manually for repeatable, consistent results. Sensor compatibility: optimized for 1/1.8 inch sensors to match common CCTV and microscope camera formats. Easy integration: CS mount provides direct compatibility with cameras that accept CS mount lenses. Main features Focal length: 4mm for wide angle coverage. Aperture ratio: 1:2.0 for relatively bright imaging. Sensor format: suitable for 1/1.8 inch sensors. Controls: manual IRIS for aperture adjustment and zoom focus for fine focusing. Mount: CS mount for straightforward attachment to compatible camera bodies. How this lens solves common problems Reduces the need for extensive camera repositioning by offering a wide field of view for fast sample or scene capture. Improves image usability in varied lighting by allowing direct manual control of the iris to avoid overexposure or underexposure. Enables precise focusing on small details or wider specimens through its zoom focus mechanism, which is useful when changing magnification or working distances. Practical applications Laboratory microscopy imaging: capture whole slide views or larger specimens on a microscope camera while maintaining control over exposure and focus. Security and surveillance: use on CCTV cameras requiring a wide angle lens with manual iris control for consistent image quality in changing light. Industrial inspection and machine vision: inspect components or assemblies where a wide field and adjustable focus are needed to document defects or verify assembly. Compatibility and installation Designed for cameras that accept CS mount lenses and for imaging systems using 1/1.8 inch sensors. Manual controls make it compatible with setups that require direct, tactile adjustments rather than electronic lens control. What to expect A compact, purposebuilt lens that provides wide angle coverage, manual exposure control, and reliable focus adjustment for CCTV and microscope camera setups. Ideal for users who need predictable, repeatable imaging in laboratories, surveillance, or inspection workflows.