Wow.
A lens probably none of us have ever seen before- and one that took its owner six years to find. This is a Petri 100mm f4.5 periscope lens mounted on a Petri FTE.
It works as you expect- and looks even weirder (and is lighter) than you think.
I can’t think of any practical use for it (I’m already 195cm tall) but as soon as it was in my hands I started wondering what it would be like to take out in public.
Amazing lens- thanks for bringing it to the gallery today, Kawada-san.