I often have to track automated scenic pieces with a moving light; because of how these pieces accelerate and decelerate a curve is often applied to the fade, with sometimes a bit of fussing to get it just right.

I wrote this app to do the acel/decel calculations and spit the curve right into the console for me. But I got excited about bezier math formulas and made a few different editors to round out the application and make it more useful.

Also it's free.

I often send raw midi events as macros on shows. I also get a lot of emails asking for the syntax for something specific. Every time I end up looking up the MIDI spec and converting it manually.

I think in imperial measurements, some specs are in metric, this helps me go back and forth without doing extra math.

I came across the need to add lenticular glass and plastics to some fixtures and wanted to know how this would affect my output. This calculator measures the effects of a circular diffuser on a circular beam and factors in transmission loss.

Camera lenses and old-school lekos are all measured by focal length, but I find it easier to work with degrees, here's a fun calculator for turning Lens measurements into degrees, and back.