Hi folks. I have a bunch of really old, 1980s- and early 1990s-vintage Canon EF lenses like the 100-300mm f/5.6L, 28-80mm f/2.8-4L, 35-70mm f/3.5-4.5 definitely not L, 35-135mm "trombone" zoom, 200mm f/2.8L version 1 etc. I *do not* plan to sell/repl...