I had some fun doing some basic processing on these single exposures. Fixed tripod so they had some trailing but oh well, was fun. The in-camera JPG was good but had far too much noise processing applied, so the RAWs were used in lightroom then photoshop.
You can turn down noise reduction and sharpening in the menus. It should be set to -2 for both. Looks like a bit oversharpened as well.
My usual settings for an Fuji X are:
ISO6400, 14mm F2.8,RAW, Velvia, noise reduction and sharpening -2, highlights, colour leave at 1 or 0. No long exposure noise reduction (if you are getting too much noise then use that).
ISO6400 is usually fairly clean but keep in mind its really only ISO4000
so if you use a Canon, Nikon or Sony it will be less bright than their ISO6400.
XE2 has a built in heavy noise reduction at ISO6400 that may not entirely turn off. Its something they did on the XE2 (XE1 did not) for the Asian market so their skin tones look like that want. It gives a plastic look and is the subject of many internet threads.
ISO6400 is usually fairly clean but keep in mind its really only ISO4000
so if you use a Canon, Nikon or Sony it will be less bright than their ISO6400.
Curious - what's going on there? Are you saying there's no extra amplification above 4000ISO?
what he means is the diff camera manufacturers have slight variation in their iso settings cf. other cameras & old film -digital iso is not an absolute & varies with manufacturer, i know Oly digital cams vary from canon a fair bit also
ISO6400 on the Fuji is nowhere near as bright as ISO6400 on my Sony A7r and Nikon D800e. Its overstated by about 2/3rds of a stop - ie, they fudge their ISO.
Its well documented. Still a great camera but ISO6400 ain't ISO6400 its more like ISO4000.