20x High-Definition Skin Analyzer Lens, M8 Interface Distortion-Free Optical Lens(Black)

Features: 1. High-Definition Imaging: Provides clear and detailed imaging for skin analysis, inspection, and other close-up observation applications. 2. Low Distortion Design: With TV distortion of only -0.82%, the lens helps maintain accurate image shapes and fine details. 3. OV5640 Sensor Compatible: Designed for the 1/4 inch OV5640 sensor, suitable for compatible skin analyzers and compact imaging equipment. 4. Compact M8 Interface: Features an M8 x 0.35 thread for convenient installation with compatible optical modules. 5. Stable Optical Performance: The 4G optical construction and 76% relative illumination provide balanced imaging performance for professional inspection applications. Specification: 1. Compatible Sensor: 1/4 inch OV5640 sensor 2. Maximum Image Circle: 5.2mm 3. Effective Focal Length: 4.89mm 4. Back Focal Length: 3.52mm 5. Mechanical Back Focal Length: 2.71mm 6. Aperture: F6.65 7. Field of View: Diagonal 39.8 degrees / Horizontal 33 degrees / Vertical 25 degrees 8. TV Distortion: -0.82% 9. Chief Ray Angle: 19.5 degrees 10. Relative Illumination: 76% 11. Lens Construction: 4G 12. Thread: M8 x 0.35