Asking price $5490.
I’ve written about this lens elsewhere. Wonderful vintage rendering, perfect mate for your film Leica if you’re looking for something other than arid, clinical digital excellence or you just want something unique.
I’m confused why they’re asking so much. Typically these are going for +/- $750 these days. They’re claiming it’s a “prototype,” which can mean anything (my understanding is that most of these were “prototypes” in the sense that they were assembled to various specs and standards depending on what was in the parts bin and what could be scrounged up at any given time i.e. there was never a ‘standard version’ of which an original could be considered the “prototype.”) I’d be interested in hearing from folks in the know (are you out there Brian Sweeney?) why Breguet thinks it’s worth what they’re asking.
UPDATE: This from “Sonnar Guru” Brian Sweeney (that’s what I call him; Mr. Sweeney, who knows more about LTM Sonnars than any other man on the planet, is too modest to claim the guru title for himself):
It looks like a custom conversion, not a factory prototype. I’ve used one of the original Factory Prototype 5cm F1.5 Sonnars in Leica mount- looks nothing like this. I think Zeiss made ~50 prototype lenses in 1932. They are the older style design with no filter ring. The earliest 5cm F1.5 that I converted using a J-3 mount is from 1934, with the newer style machining that is compatible with the Russian lens mounts. As far as pricing- it only matters if someone pays the asking price, the asking price of this lens is ridiculous.I have a 5cm F1.5 Sonnar “T” from the same batch. I converted it to Leica mount. I asked $450 for the last converted Sonnar that I sold, a beautiful Bloom on a 1936 5cm F1.5. Maybe in 50 years someone will call it a prototype…