Enhanced Resolution Test Chart ISO12233 4000 Lines For High Precision Imaging Devices

ISO12233 Enhanced Resolution Test Chart 4000 Lines

The ISO12233 4000 line is an enhanced resolution test chart that complies with the ISO 12233 standard, primarily used for testing the clarity and resolution performance of high-precision imaging devices.
1. Core features
Based on the standard 2000-line test card, it adds a star pattern and 5° oblique edge elements, covering a resolution measurement range of 500-4000 lines/image height. The central area supports up to 4000 lines, while the edge area supports 2000 lines, meeting the testing requirements of high-pixel imaging devices.
2. Specification parameters
Offering a range of sizes including 0.5X, 1X, 2X, 4X, and 8X, the mainstream type is reflective, with the option to customize for transmissive types. The materials predominantly utilize high-precision photographic paper laminating. Different magnifications correspond to varying effective testing areas, accommodating a wide range of testing scenarios from mobile phone lenses to long-distance large-scale optical systems.
3. Main purposes
It is widely used for standardized evaluation of image acquisition devices such as civilian digital cameras, mobile phone cameras, and surveillance cameras in terms of resolution and MTF sharpness, and is the core benchmark tool for verifying the resolution performance of imaging systems in the industry.

Dongguan Dafan Optical Technology Co., Ltd.(DFOPTIX) was founded in 2018, its headquarters located in Dongguan City, Guangdong Province, China. DFOPIX is a system-level calibration solutions service provider with engineering culture as its cornerstone and technological innovation as its core.

Currently, DFOPTIX has nearly 150 employees, with R&D personnel consistently accounting for over 30% of the workforce each year — a professional team combining deep engineering expertise with sustained innovation capability. DFOPTIX has established an advanced R&D and manufacturing base spanning nearly 20,000 square meters, equipped with high-standard precision workshops such as class-100 lithography workshop and class-1000 vacuum lamination workshop, as well as various well-equipped professional laboratories. It has also introduced internationally advanced manufacturing and testing equipment, systematically establishing an industry-leading R&D and manufacturing system.

DFOPTIX specializes in the R&D and manufacturing of a full category of calibration products — including integrated light-source calibration targets and LiDAR calibration boards, while also providing customized calibration product services tailored to customers’ requirements. To date, our company's products and solutions have been widely deployed across sectors including medical, semiconductor, robotics, consumer electronics, intelligent vehicles, aerospace, 3D scanning, and industrial automation. DFOPTIX has served over 3,000 clients, including several Fortune 500 companies.