I couldn't be more excited for Half Inch Rails new Zip Tie Focus Gears, but I couldn't help but wonder if this was inspired from a little thread started here. Regardless, the design is inspired, original and a welcome contender in the lens gear market.
Before Half Inch Rails' solution, a few eager shooters tried to work out their own affordable gearing configuration. What follows are my meager efforts in the same pool of inventiveness.

