Since some time I visit this marvelous site. very nice tutors.
So, I read the tutorial about freezing a droplet and there I see a shutter-speed-calculator.
Can some-one help me in the used formula for that enigne ? Why, I would make it in an excell-doc because I do not always have internet at my disposals when I try things out and I would like to understand the fysics and the math on that calculator.
meanwhile, I have some pdf concerning macro-micro on my site (I wrote them for two workshops). If interest for it, thery may be put here ...
On my site, add-ons - docs. There you'll see the available list.