The holder start in a locked vertical position, and to attach a lens you just bayonet it into place, securing the glass and allowing the holder to be lowered.
But desire spawns invention, and Mandel is seeking a patent on a simple, platelike device that enables him to attach a conventional 35mm Nikon lens to a digital astronomy camera.
By using this adapter to attach any K-mount lens onto a PENTAX Q series camera, the focal length of the lens is extended by approximately 5.5 times in the 35mm format.