Macro photography rail for focus stacking.

This is a manually operated macro rail to assist with precise image capture for focus stacking in macro photography. The winding mechanism has a metric thread with a 1 mm pitch, so a full turn of the knob advances the camera by exactly 1mm. Half or quarter turns will make finer advances. This is ideal for consistent, incremental movements along the Z-axis. A left-hand thread was intentionally used on the drive screw, turning it the “normal” way felt counterintuitive during testing, whereas this orientation just felt right. For mounting the camera, I recommend adding a non-slip pad and a standard 1/4" thread camera screw. The design includes a built-in tripod mounting option, though in my case, the tripod wasn’t quite sturdy enough, so I’ve secured the rail to a solid board for added stability. There are holes for mounting this way, but it needs to be mounted on the end of the board so the handle can turn. V2 - I have added a round knob which will clear. While not motorised, this ma