...No, seriously, that shaved-wood padding stuff is called "excelsior."
Longtime camera buffs will recognize those telltale lenscaps as being from the AF Carl Zeiss lenses for the Contax G1 and G2, which were deluxe AF viewfinder cameras from the end of the film era. The lenses have been converted by Japan Exposures (which loaned us these) to manual-focus Leica M mount, for use on any M-mount camera.
Here's a size comparison between the tiny converted Planar 45mm ƒ/2 and the Panasonic Lumix G1's already wee zoom lens, shown here with the lens hood on in a transparent attempt to make it look bigger. Next we need...
...The currently coveted and hard-to-find RayQual Leica M to Micro 4/3 adapter.
The adapter is actually a fairly intricate bit of machining, complete with a little spring-loaded lens locking clip. So maybe the price isn't quite so exorbitant as it initially seems.
Be careful, though—with the adapter attached, the rear element of the Biogon 28mm ƒ2.8 protrudes past the rear rim. Don't forget and set this down the wrong way.
So put it all together and what have you got?
...Right, a li'l bastard. Lest anyone think I'm being crude, I hasten to point out that I'm using both terms in the technical sense...meaning "small" and "of mixed parentage."
And you know what this means, of course. It means that before the week is out, I'm probably going to be out making comparison shots between the Contax G 28mm (56mm-e) and 45mm ƒ/2 (90mm-e) vs. the G1's zoom at the appropriate settings. I live an empty, useless life.
Kinda cute, though, idn't it? Of course you don't need to use the Leica M to Micro 4/3 adapter to mount converted Contax G lenses; you can mount any Leica M mount lens you happen to have, from the Konica M-Hexanons to the M-Rokkor 40mm ƒ/2 made for the Minolta CLE. ...Or, of course, many different authentic Leica lenses of a wide variety of vintages. And, if you also get an M-to-screw adapter, you can mount LTM (Leica Thread Mount) 39mm screwmount lenses too.
Featured Comment by Michelle: "All of this just to put G1 lenses on a G1? (Sorry, I know it's a silly joke, but someone had to say it.)"