A short technical test, I hope to use this for much more interesting subjects in the future 
[video=youtube;PEXZ3TnOquk]https://www.youtube.com/watch?v=PEXZ3TnOquk[/video]
I used a Panasonic G7 with a laptop running a simple python script as an intervalometer (its possible to use a raspberry pi or other small device to run this script).
Python script: https://github.com/lippyt/lumixlib/blob/master/focuslapse.py

[video=youtube;PEXZ3TnOquk]https://www.youtube.com/watch?v=PEXZ3TnOquk[/video]
I used a Panasonic G7 with a laptop running a simple python script as an intervalometer (its possible to use a raspberry pi or other small device to run this script).
Python script: https://github.com/lippyt/lumixlib/blob/master/focuslapse.py