Originally posted by dngr I'm blown away by how you managed to get those little suckers in focus!
Tricky question. The whole concept is pushing the limits of physics and the sensor - it took me 148 exposures this time, incrementally reviewing at the computer and optimizing in between several (manual) bursts of shots. I hope I find the time for a more complete description of the entire setup and post-processing in a dedicated thread.
If you check your DA 15 DoF scale, there is about 1cm in front and behind the minimum focus distance at f/8. A bit more for web resolution. No, I could not close further, I needed the light. In free flight, bees move at about 2cm
per millisecond. Obviously, it would be hard to capture even a single bee at full speed and require a much shorter exposure - impossible except with a flash. My simplified/modified reflective laser beam coincidence trigger inspired by the amazing work of
Fotoopa is still in the early stages. According to my measurements, I could trigger my K-5 (with mirror lockup - time from detection to the camera to flash firing) within less than 10ms of flying through my 'hot' spot, which would increase chances of a sharp shot tremendously when shooting parallel to the flight direction with a little bit of pre-center triggering.
Meanwhile, I took a statistical approach: Close to the hive, arriving bees get much slower and may even do a small hover loop to find a place to land on a busy day. The three in the picture are not at this stage yet as they still have their legs tucked in (you find dangling legs in my
bee-related album), but are decelerating. In addition, I have
many models, so "all I had to do" is place the lens front as close to the hive entrance as possible (~10cm), wait and observe until there is some 'traffic jam' and multiple bees come in with interesting pollen, then trigger a series of shots so that some bees
may approximately be at the right distance in front of the lens.
With a bit of luck, you get usable exposures. I got a handful. Unfortunately, you can't see that on the camera screen, much like with film, but that will be a topic for a dedicated thread likely in the macro section.