Which unit is best for macro and focus stacking?

The SliderONE v2 is the best slider to use for macro shots. It is our smoothest slider due to its compact size and built-in motor; this makes a big difference when taking tight shots. 

It is also very portable and can fit in small spaces, making the setup process faster and more convenient for you. Unlike the SliderPLUS v5, it can be used at any angle and vertically.

Lastly, the unit has very small step sizes with a high-resolution encoder, so you can get repeatable shots as often as you need for focus stacking.