Matt, if you're not acquainted with dioptrique.info, take a look at it. It is in French, has prescriptions for > 1,000 lenses, many taken from patents. Eric Beltrando, its owner, is one of my friends. He was a friend of CEDIS-Boyer's owner and reoptimized Boyer prescriptions for properties of newly-arrived batches of glass. He wrote the program that produced the performance curves etc. on his site. I mention Eric and dioptrique here because he insists that Dagors (f/6.8 and f/7.7) have much less coverage than the 85 degrees Goerz claimed. He says the same about f/9 w/a Dagors, see
http://www.dioptrique.info/OBJECTIFS11/00533/00533.HTM. He calculated that the f/18 Protar V has much more coverage. See
http://www.dioptrique.info/OBJECTIFS1/00034/00034.HTM
I hope that I'm mistaken, but I doubt you'll be able to assemble anything like these lenses using COTS lenses.
Bookmarks