I guess lenses aren't forever after all. The Olympus 45mm f/1.2 PRO is rocking my world, and I don't regret for an instant trading in my Nocticron. Some may still prefer the Nocticron for dual IBIS, but I've never encountered a situation with non-stabilized lenses where the camera's own IBIS, or that of a brushless gimbal, wasn't good enough. I've even shot with the Veydra 85mm with ETC mode enabled and the GH5's IBIS allowed me to shoot handheld with no camera shake. Some still believe that the Leicas have a magical 3D pop, which may be a combination of color rendering, the way it renders out-of-focus areas and micro-contrast, as well as high resolution, but I'm not seeing it - or rather, I don't see it as exclusive to any one brand. Practically any good lens today, whether it's Zeiss, Fujinon or Sony, can deliver exceptionally three dimensional images. Sigma's 16mm f/1.4 has also displaced my seldom used Nokton 17.5mm f/0.95. From f/1.4 onward, it pretty much kills the Voigtlander in virtually every regard, and not only in resolution. I do like fast primes, but when we're talking f/0.95, it's a case of seriously diminishing returns. Wide open, the Nokton 17.5mm f/0.95 loses as much as 68% of it's brightness at the corners due to vignetting, the Sigma, 24% at the edges wide open. And both the Sigma and the Olympus render out-of-focus areas beautifully. Perhaps the one word that comes to mind when thinking about the Noktons is 'character' - but I believe the Sigma 16mm has plenty to go around. Which is probably one of the reasons why it was on the list of many photographers' best-of lenses earlier this year.