Features: This lens adjustment test chart is an essential lens calibration tool for professional monitoring installations. Crafted with durable materials, our camera lens calibration card features clear markings for precise camera focus calibration. Compatible with most CCTV systems, it helps equipment calibration and lens alignment to optimize monitoring clarity in both day and night environments. Features -Color:Multi -Material:Paper -Size:40.00X32.00X0.20cm/15.72X12.58X0.08in -Accurate focusing: ensure precise camera focus alignment with the lens calibration tool for crisp and detailed monitoring footage in both daylight and lowlight conditions -Efficiency boost: the camera focus calibration chart allows rapid installation and maintenance, significantly reducing setup time for monitoring systems and improving workflow productivity -Wide compatibility: designed as a universal camera lens calibration tool, it supports various security camera brands, making it easy to calibrate devices across different environments -Durable materials: built from rugged components, this cctv color calibration chart resists deformation, providing consistent performance and minimizing the need for frequent replacements -Userfriendly design: featuring clear color calibration card markings, this tool is ideal for professional technicians and beginners, enabling swift and accurate lens adjustment Package list: 1 x Lens Test Chart