Upload & Sell: On
I bought the Rainbow adapter off of Amazon for $70. It's metal made, with some plastic, but looks just like the Canon version, and also comes with a tripod foot. I tried it a little last night with my Sigma 85 on the M that I just received yesterday. For the most part, it locked right on with AF, but it did hunt a touch. Not sure it it's the camera(new FW updated already), or the adapter. I have some more playing to do today with them!