Douglas Stemke , Apr 14, 2011; 11:41 p.m.
I have used an older Novoflex and Pentax Macro Slider III. Both of them were 2-d units. I googled the Accura and it looks like a 3-D version. Since I haven't used the Accura I can only speculate some of this. Both the Pentax and Novoflex use a worm gear to move the camera very accurate very smooth, I don't think the Accura does. The Pentax lock up very easily. My Novoflex is pretty light weight, the Pentax was large enough to handle a 6X7. I would think a 3-D version would be a pain to hike with because it is bulky.
Sorry, not very helpful.