The UPS man delivered my new Sigma 105mm macro lens this afternoon, and I immediately set up a simple facility to try it out. I put an old Weston light meter down on a counter, and next to it I arranged a cheap Quantaray slave and my old Oly T32 on an optical slave hot shoe around it, both pointed up at the ceiling. I set the E-500 flash to 1/64th power and held the camera by hand.
For the coin, I set up a tripod and focused (manually) as close as I could get. The camera was not directly over the coin so it’s not in focus all the way across; I need to rig up a “ring box” so that I can do real close-up planar macro shots.