Now that I have the new insanely portable Lumix S9 camera, and thinking about the very very innovative 26 mm F8, manual focusing lens, I think I finally have it figured out; the virtue of having a manual focusing only lens is that you could make it much smaller compact — lighter, more thin, because you don’t have to mess with or add the auto focusing mechanism which adds bulk, weight, obtrusiveness.
What is really interesting is I still have my beloved Leica 35 mm F2 , aspherical lens, which is married to the body of my Leica MP film camera,,, but when I use the adapter and put it on the Lumix S9, the 35 mm f/2 lens is significantly heavier, and also thicker the new 26 mm f8 manual focusing lens.
I think what I have discovered in all of my years of photography, as time goes on, I become more advanced, wise, experienced and seasoned… The will to simplicity is supreme!