To mount any accessory with a female 1/4" or 3/8” thread onto a camera hot shoe. A precision CNC-made brass "cold" male shoe adaptor, for fitting any accessory with a female 1/4-inch or 3/8-inch thread, to a camera shoe. The shoe adaptor has two locking thumbwheels, the lower one for tightening onto the camera, and the upper one for tightening onto the accessory.