Fotodiox Macro Focusing Rail for Canon, Nikon, Sony, Pentax, Olympus DSLRs
Focusing rails are essential accessories for macro photography, which requires precise distance modifications and a steady hand, as well as other situations where accurate camera positioning is crucial. With two 6" rails, this rail is for use with all digital and film SLR cameras and is compatible with most Canon, Nikon, Minolta and Pentax macro and EOS bellows, macro shot extension tubes, or macro lenses, such as the Canon FD and FL. The rail allows movement in four directions, right, left, forward and backward. Mounts on, and accepts 1/4-20" thread screws, and it will fit most tripods and stands. Positive locking knobs assure rock-steady focus.