Scene: Pure white textureless background wall, the wall is flat and smooth without decoration, and the height and width are enough to accommodate characters and shooting needs. A professional studio lighting arrangement is adopted, and a large soft light box is installed on the top as the main light source to provide uniform 5500K cool white light to ensure sufficient light on the face and no shadows; a secondary light is placed at 45° angles on both sides, with an intensity of 60% of the main light source, further eliminating shadows; a reflector is installed at the bottom to increase the brightness of the neck and avoid dark parts. The entire shooting environment is clean and clean, without any debris entering the camera.
Character: Wear a dark collared top, the clothes are simple and have no patterns, decorations or texts, and avoid wearing white, light and standard clothing (such as police uniforms, school uniforms, etc.). The hair is neatly combed, all combed backwards without covering your eyebrows, forehead and ears. The long hair must be coiled or tied tightly, and the broken hair must be fixed with hair spray; the hair color is natural black or dark brown, and no dyeing or wearing colorful hair accessories are allowed. Do not wear any jewelry, including necklaces, earrings, bracelets, etc. The makeup is bare-faced, you cannot put on makeup, do not apply lipstick, eye shadow, blush, etc., do not wear contact lenses or false eyelashes to maintain the natural state of facial skin. Sitting on the shooting chair, relaxing shoulders and keeping level, with a straight head, looking straight to the center of the camera, centering the eyeball, naturally closing the mouth, calm facial expressions, and no smile, frowning or other expressions are allowed. The viewing range of the character is from 2-3 cm above the head to 2-3 cm below the clavicle. The head is located in the center of the picture, accounting for about 60%-70% of the picture, ensuring the complete display of the head, neck and part of the shoulders.
Atmosphere: serious, standardized, formal, and meets the rigorous requirements of ID card photos.
Parameters: The resolution is not less than 300dpi, ensuring the picture is clear; the file format is JPEG, and the color mode is RGB; the aperture is set between f/4 - f/5.6, ensuring the character is clear and the background is moderately blurred; the shutter speed is 1/125 - 1/160s, preventing the character from shaking and causing blur; ISO 100 - 200, controlling noise to ensure the picture quality is pure; using a 50 - 85mm focal lens, flat viewing angle, ensuring the normal proportion of facial features and no distortion; only basic adjustments are made in the post-processing, such as brightness and contrast fine adjustment (adjustment amplitude does not exceed ±5%), correcting color offset, removing obvious stains on the face, etc., do not overly wear or liquefy, and retain real facial features.
