I’ve been reading your blog for some time, and I think that is a wise move on to see “real results” of many cameras and lenses. Two weeks ago I bought a Fuji X-E1, and last weekend I had the opportunity to photograph a concert of some friends (The group is called Over).. The light was poor, so I took it as a real test of performance at high ISOs and AF. I can say that the results for me are great. I used center AF reframing later and lost less than 10 photos of 300. All photos taken in manual, automatic ISO, 1/60s and 18-55 kit zoom. Processed in Lightroom from raw.
And then some pictures …
ISO 6400, 1/60″, f4, 55mm
ISO 5000, 1/60″, f3.6, 31mm
ISO 6400, 1/15″, f2.8, 18mm (really dark here)