The nikon ta n100 is designed for the nikon 1 system cameras including the nikon j1 and v1 models it supports the use of larger lenses and acts as a spacer when youre shooting with a nikon 1 system camera on a tripod the ta n100 puts space between the lens and the head and prevents the larger lens from coming into contact with the tripod head the ta n100 fits onto a tripod head and using the thumb wheel you can safely attach your nikon 1 v1 or j1 onto the screw