Some what of a follow up question. In the process of getting a new Fuji 90mm, I actually won two 90mm SWD f5.6 lenses. Both lenses are nearly identical, the serial numbers are less than 250 units apart. One of them has has a slightly nicer front element and the other has a slightly nicer rear element. I was wondering if there were any problems taking the nicer elements and putting them together. They are the same exact lens with produced roughly at the same time, so I cant imagine any great differences between them. They seem virtually the same on GG, though the focus point changes by a millimeter or so.
Any thoughts would be greatly appreciated.