2Pack 8mm Varifocal Lens for 720P CCD Cameras Key benefits Delivers compatible imaging for 720P CCD camera systems, providing clear video for surveillance and monitoring tasks. Bright F1.4 aperture allows more light into the sensor for improved lowlight performance compared to smaller aperture lenses. CS mount and 1/3 inch format ensure straightforward installation on cameras that accept CS lenses and 1/3 inch sensors. Varifocal design with adjustable focus lets you fine tune image sharpness on site for the exact field of view needed. Two lenses in one package provide spare coverage or a cost effective option for multicamera setups. Main features Focal length: 8mm, suited for medium telephoto viewing angles in common CCTV layouts. Aperture: F1.4, supports better illumination capture in dim conditions without additional lighting. Sensor format: 1/3 inch, designed for CCD cameras that use this standard sensor size. Mount type: CS mount, compatible with cameras that accept CS threaded lenses. Pack quantity: 2 pieces, useful for pairs of cameras or backup replacement. Practical use scenarios Home or small business surveillance: or upgrade existing CCTV lenses to achieve a sharper 720P image and better performance at dusk or night. Retail and office monitoring: Fine tune focus to capture register areas, entrances, or aisles with the varifocal adjustment for precise coverage. DIY or custom camera projects: Ideal for hobbyists and installers building multicamera systems that require 1/3 inch CS mount lenses optimized for 720P CCD sensors. Compatibility and installation notes Designed for CCD cameras that accept CS mount lenses and use a 1/3 inch sensor format. Manual focus adjustment is available; calibrate focus after mounting to ensure the image clarity for your specific placement distance. This 2pack provides the optical specifications needed for many standard CCTV and CCD camera applications while offering easy installation and onsite focus control.