Stephen, do you have an actual cross section of the lens elements for this one? I ask because the 3D graphic I have of their first "Petzval" was distinctly not a Petzval design. I've asked for several years for confirmation, and have gotten none. I shoot a LOT of LF Petzvals, and am a scholar of them. It would be nice to have the Lomo design shown. Without having to buy one and saw it in half!