A to C shows beads on a slide imaged by a bulk microscope. D to F are the beads when viewed from a conventional lens-based microendoscope. G to I are the raw images from the research team's new ultra-miniaturized lens-free microendoscope. The researchers say these images are terrible but actually provide a great deal of information about light coming through that can be used in computational reconstruction to piece together a clearer final image. J to L are images G to I after computational reconstruction.