I see a massive design issue that I immediately experienced with the 21 Lux design: the aperture ring is directly beside the focusing ring and appears the tactile experience will be such that it will be very difficult to distinguish between the two. The 35/1.2 also appears to lack a focusing tab (or did I miss it?). Same situation with the 21 Lux (and 24 Lux).
It's not unusable with bare fingers, but also not idea. It's a disaster with gloves.
I'm also not a fan of the very short telescoping built in hood style. I much prefer the compact rectangular metal hoods that were common before the recent close focus redesigns.
But no worries, I won't be getting this lens any time soon.
