The tripod mount ring is constructed from high-density aviation aluminum, precision-machined using a high-end CNC turning center and hollowed out with diamond cutting tools. It features vibration polishing technology, enhancing grinding precision by 20% compared to manual methods, and undergoes multiple anodizing processes to improve surface finish and color uniformity. Laser scanning technology captures precise lens dimensions, allowing accurate internal contour carving of the lens collar. Specifically designed for the Nikon PC NIKKOR 19mm f/4E ED Tilt-Shift Lens, the tripod ring installs at the front of the lens and does not rotate. It avoids interference with lens switches and knobs, preserving full lens functionality. This collar is not compatible with other lenses. The lens support uses 3D engraving technology and a split design with a 180-degree quick-lock knob. Its interlocking convex-concave structure securely holds the lens in place with a half-turn rotation. The unit weighs approximately 160g. The minimum inner diameter of the lens holder is approximately 74mm. The lens contact surface is lined with a 0.3mm-thick protective film. The quick-release plate measures approximately 50mm in length and includes 1/4-inch and 3/8-inch threaded mounting holes, along with stainless steel anti-slip pins.