Shooting macro with cheap focusing rail

My biggest challenge shooting macro with reverse lenses is razor-thin depth of field. The lens focusing ring doesn't work and I had to move the camera to or away from the object to nail the focus. Very tedious exercise. I started to look for some sort macro focusing rail and just got one from eBay for $11 delivered.

Rig assembled (X-Pro1 with Nikkor 28/2.8 in reverse)

How does this rail work for macro?

Reverse lens macro photography with X-Pro 1

Macro photography is one of the area that I had never really explored. Good macro lenses or close-up filters are not cheap so I decided to try a well known "reverse lens" method just to see if macro photography is for me. All you need is an adapter to mount your lens in reverse, using the filter thread in front rather than actual lens mount at the back.You can easy calculate the diopter power of the reversed lens by dividing 1000 by the focal length. For example, a 35 mm lens gives a 1000/35 = +28.5 diopter.

Inside a 100 years old Omega watch 

That's how I setup my new macro rig.