A few years ago I obtained an inexpensive adapter that allowed me to couple an old Minolta lens onto my Canon DSLR. I didn't expect that this unholy union would provide a normal range of focus and it didn't, but I could use the legacy lens in manual focus for close-up work. Yes, a macro lens would have been much better but also much, much more expensive. Even Canon active extension tubes, which would allow communication between the lens and the camera, were much more expensive. My feeling at the time was that it was a low-cost experiment. I wonder whether anyone has ever tried coupling a legacy lens to a mirrorless camera with its more proximal focal plane. Would the skinny little adapter bring a legacy lens to a useful distance from the sensor? Were there not a few rangefinder cameras with interchangeable lenses back in the day? My distant memory is obscured by dust and cobwebs. Kind of a nutty notion, I know, but if anything is for certain it's that I'm nuts.
