I have an XT2 and 18-55, purchased new (open box). I've had it for the last 7 months and have taken probably 3,000 photos with it. Only complaint that I've had has been that the 18-55 seems to be soft. Pictures are most sharp in bright light but beyond that I don't have much of a wow factor. I thought that was just the norm, or my skill level, with that lens.....until I got the 10-24. The 10-24 is VERY sharp and detailed with vibrant colors even in less than ideal lighting. The difference is very noticeable between the two lenses. For both lenses the menu setup was the same (sharpness -2). Is there that much of a sharpness difference between the 10-24 and 18-55 or could I have a less than stellar copy of the 18-55? Would this be considered a warranty issue to request that Fuji inspect the lens?