What might be an important clue, the photos in RAW are huge in size for 16 megapixels!
They are on average at 32 MB. The JPGs are very far with about 3 MB including, but are in daylight shots of very good quality. For my taste, they are a bit too mushy in the dark pictures taken just at faces. Since the RAW is almost beckoning required.
The X100S is against my Nikon D7000 almost lazily in triggering. Even the setting is not as fixed as in the Nikon ...
What can be controlled from the Nikon over the wheels must be called here only in the menu.
Who still comes from the days of analogue photography, adjusted when shooting in any case only the aperture and shutter speed.
Adjusting the ISO, however, is a welcome luxury.
I can make the X100S each Share, the suffices a fixed focal length and who knows settings manually.
.... For all who want to still work out: you can at the X100S the aperture and the shutter to automatic questions and so slowly approach to the Manual setting.