Abstract: A quick-release coupling device for optical equipment includes male and female elements that can be coupled. The male element includes a cylindrical body having a circumferential groove and the female element includes a sleeve body defining an engagement seat that extends along an axial direction and is arranged to house the cylindrical body in a coupled manner. The device includes retaining members guided radially in respective seats of the sleeve body and selectively project into the engagement seat in order to engage with the circumferential groove and a collar guided axially outside the sleeve body and has, for each, a respective slider inclined with respect to the axial direction to move the corresponding retaining member radially into the seat resulting from movement of the collar along the axial direction. A springing member urges the collar to a position where the sliders move the respective retaining members inside the engagement seat.