<p>Many thanks to you who offered information on how you captured an image including (but especially in addition to) EXIF data. I'm digesting it. I shoot a lot of flowers, butterflies and insects, mostly handheld, using a Canon EF 70-200mm 1:2.8 and I'm not satisfied with my DOF and sharpness. I was inspired by Ronald Duren's black swallowtail: eyes, 4 legs, and BOTH antennae in focus! I would have expected to need a smaller aperture than f4 to get that DOF. I assume it was shot at 200mm. </p>