A 100 watt light was pointed at a white paper background. The glass was angled just as it appears in the picture (I am now minus 1 wine glass which I didn't have secured well and it tipped over). I shot in manual, 1/500 sec at I believe f4, shot 6 frames continuous poured water with food colorring into glass and hoped for the best. Took several attempts at pouring and fiddling with exposure.
The original shot had a natural vignette, I did alter the color from gray to better suit the liquid color.
Exif says f3.2 @ 1/800, but that's just details. As I said, awesome capture, and one of the best liquid shots I've seen done. My fav for sure this week.