Hi bifurcator,
Thanks, be looking forward to it!
The animation is fun to watch and illustrative. From f/16 you see the diffraction kicking in (if I am correct). Actually I'm somewhat surprised at the (maybe exaggerated) softness even past f/8. The f/16 and f/22 stops I rarely use on any lens ... I have not yet had a lens which produces good images at those settings.
My M42 Tessar can be pretty sharp at f/2.8 - I think it's more related to focussingdistance than anything else. I think I've read in the ZF/ZE/ZM thread (or any of the other Zeiss related threads) that indeed lensperformance may be quite different between close-up or at infinity.
Thanks again so far!
cheers,
h.