This excellent quality rail is for use with all digital and film SLR cameras and
is compatible with most Nikon, Minolta and Pentax macro and EOS bellows, macro
shot extension tubes, or macro lenses such as the Canon FD and FL .Smooth rack
and pinion movement provides extremely fine focusing adjustments.
The rail has a geared drive system which greatly enhances accuracy and speed of
adjustment of the rail.
Two 6" rails allow movement in four directions, right, left, forward and
backward. Mounts on, and accepts 1/4x20 threaded screws, will fit most tripods
and copy stands. Positive locking knobs assure rock-steady focus
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.