Looking for an inexpensive single axis stepper motor controller that has
a single output that can be programed. Simple contact closure on the
output is fine, no current to speak of is to be handled.
Strongly prefer something battery powered.

I'm very interested in the technique called stacking in macro
photography where multiple shots are taken with the camera moved ever so
slightly between exposures. In macro photography, depth of field can be
paper thin. These multiple shots can be digitally stacked to provide a
macro image with a vastly greater apparent depth of field than could
otherwise be achieved.

I've just made my 3rd attempt to get an ultra close shot of fine brass
chips, but the depth of field is so narrow, I can barely get a single
chip completely in focus. The bed of chips is far too uneven to get
anywhere near the effect I want without stacking.

I could use a dial indicator on my bellow's focusing rail and a remote
release, but of course, I want to automate! Something like the now
defunct Frog CNC with a single output would be perfect for field use.
I'd need to be able to program an output event, move the camera, pause
to let things settle, then repeat.
Not interested in schematics or even kits, if it's not available turn
key, I don't have time for it right now.

Thanks,


Jon