NEX-F3 frustration--is this related to ISO 200?

Ok, these are using a neutral density filter and very small apertures (the first is f22) to force a long exposure, on a tripod, at the golden hour, in spectacular locations, and using very careful post-processing from RAW (i.e. not the camera's JPGs). This effect is actually achievable with a NEX, but possibly requires better (read: $$$) lenses than the kit zoom. I don't have any similar examples (lol), though some of my night time long exposures use a similar technique:

Alan