I want to try this with a landscape. Possibly overkill but I'm curious to see what a series at 5.6 with a rectilinear will get me.OK, decided to try this for myself. Interesting results. Just an exercise, so just grabbed something off the shelf to photograph. Just shot JPG format, and f2.8 to narrow DOF. This composite is from 18 images. Used CS6 to align then merge the layers.