March Fly in flight.Wow! How did you manage to shoot this?
From an insect perspective, I noticed they were hanging around the back of house, hovering on occasion (for 2-3 seconds), before darting off. If I stood still, peaking over the viewfinder (because they would dart off at the slightest movement), they would get within 1-2m from me. But sometimes, they would get within 30-50cms from the lens.
I had the twin macro flash setup, plus the 5D3 was set to 6fps, and in AI Servo mode. The tricky bit (from a camera perspective) was trying to get enough focus points to pick up on the fly, and not the background. Sooooo many out of focus / trees in focus shots. Thankfully, it's digital, not film