I would recommend the XF16 for improved optical quality
29 October 2015
Summary: I've used this lens almost exclusively for two years. Because I need to travel extremely lightly and work in challenging conditions, the very compact size of this lens is important. However, it is lacking in optical quality at the edges and I often encounter green/magenta chromatic aberration.
A good lens if you can get past Fuji X system limitations
9 August 2014
Summary: The small size and light weight of this lens were what first attracted me to it. Along with the fact that it was the widest X lens available for the original X system when released. It does make a very easy to carry package even on the heavy X-Pro1 body. Focusing is a mixed bag.
Summary: This is my only Fuji higher-end quality lens (bought used on Ebay for $400.00) and I'm a curious why this lens design has as many optical negatives as it does for all of Fujifilm's lens manufacturing clout--together with its high price.
Summary: I really wanted to like this lens, because it's small and light and has a useful angle of view. (I find the 14mm, which is a fantastic sharp wide angle lens, to be a little too wide. I wish Fuji made a 16mm prime.) However, the edge sharpness in the 18mm is pretty mediocre.
Excellent optics, fast, but inhales dust. Lens hood is terrible.
I. Norman, Amazon
27 February 2014
Summary: The smallest fast lens for your Fuji. It's got a brilliantly fast f/2 aperture that helps it work in very low light conditions. I love that it's so small. It's basically a pancake. I have no issues with the lenses sharpness or performance at all, it's downright awesome.
Summary: I bought this lens to use at night around town and to allow me to stuff my XE1 into my pocket. It worked okay. Not nearly as crisp as the Fuji 35mm. It was only slightly crisper than the 18-55mm kit zoom. It does allow a very tight macro focus. I sold it and will likely replace it with the 23mm.
Cheap accessories and no DOF scale on the lens body...
K. Foust "KFo", Amazon
29 May 2013
Summary: The performance and quality of this lens is good albeit with two issues that really irritate me. The first is the quality of the lens cap and the cap that comes with the lens hood. These two accessories are like "copy exact" cheap almost non-functional replicas of good quality pieces.