Tech Specs: Canon 80D (aperture priority F8, 1/800, ISO 800) + a Canon 100-400mm f/4.5-5.6L IS II with IS on. E-TTL metering, (-2/3 EV). This is a single, uncropped, frame taken hand held. In post I used Topaz Sharpen AI and Clarity in that order.
It was really hot that day even though it was overcast so I went out to shoot in two 15 minute sessions, and I took that shot in the second one. I found a sunflower that was getting a lot of activity and framed the shot with a huge vine in the background that was running up a tall tree (the green stripe that runs from lower right to upper left) and took a few test shots to adjust the exposure and to see how that vine was gonna look out of focus. I had the camera set to multi shot mode, and whenever I saw some activity I pressed the shutter down and just let the camera rip through the frames. If I remember correctly, during those two sessions, I shot roughly 200 frames. It sounds like luck, but it is no different than shooting a sporting event. You pick your spot, frame the scene, and when something interesting happens take a lot of shots. So not entirely luck, just fortunate to catch the bee at that spot. Glad you like the photo :)