Please forgive the gratuitous image in a discussion thread...
Here's a familiar object taken last weekend with the X-E1. 5x 3m subs at ISO3200. I'd actually taken a few more but my drift was poor. I'm pretty pleased with the level of detail and fainter nebulosity it's picked up compared to my 1100D. No stretching - just colour balanced. It also shows more towards the purple hues than the 1100D. Unless that's my colour balance! Ignore the blue star halos, as I believe that's because I'm only using a little doublet for imaging...and maybe I'm ever so slightly out of focus.
Edit: I've added a similar stack (5x 3m subs, ISO1600) with the 1100D that I collected last month from the same site, albeit the temperature was 5 or so degrees warmer. The left hand edges of the histograms for RGB have been brought down to the same values...not sure this is a valid technique, but still...
If I could tame the blue halos, I'd pretty happy with the X-E1 for AP on a budget
