Been to Leica Solms, which is rather unspectacular unless you intend to spend some money in the Leica shop or have an appointment for a factory tour (which I hadn’t, but will to sometime in the future). One of the more fascinating exhibits was this Apo-Telyt-R 1:5.6/1600mm, probably Leica’s longest, biggest, heaviest and most expensive lens ever.

Leica M8 + Biogon 28/2.8 @ f/5.6, 1/250 sec, ISO 160