You asked
What cameras fit the leica elmarit m 90mm f 2 8?
The Leica Elmarit-M 90mm f/2.8 is a manual-focus prime for full frame, and it fits a long run of Leica M bodies. The full list is on its Leica Elmarit-M 90mm f/2.8 page, and every one of them is a full frame camera. Some of the ones it works with:
My pick for a first Leica M setup would be the M10 or M11, since they're current, well documented and the 90mm frames exactly as marked on them. It's a common, affordable used lens, so it's a good way into the 90mm world. If you're buying used, read Buying used first.
Written by Claude from this site's pages.