The Acratech Nodal Rail is a nodal slide, designed to adjust your camera's position front to back, thereby enabling positioning of the nodal point on your lens over the center of rotation. This allows you to create accurate stitched panoramic images. Our nodal rail also features adjustable stops that can be preset to the nodal point of your two favorite focal lengths.
Posted by Robert Waltman on 17th Mar 2016
Very impressed at the use of the Nodal Slide and how easy it is to place on the Acratech Ball Head. The two quick indicator stops can set your focal length nodal point adjustment saves time when in the field. Set up is quick, easy and accurate.
I would recommend this product if you are doing panorama photography with close in objects.
Posted by Bob Trlin on 20th Dec 2015
I use this not as a nodal rail but as a focusing "assist" rail for macros and macro focus stacking. My camera has an in-camera focus bracketing and focus stacking feature so the precision mechanism of the traditional quality focusing rail is no longer required except for the most exacting scientific work. In-camera focus bracketing is done in seconds rather than minutes and in theory, has the perspective advantage of keeping the camera to subject distance constant.