Like the Sigma 30mm f2.8 I mentioned in an earlier post, I really like the idea of this lens - small, cheap, sharp and light. Interestingly, the reviews are also very good. I am thinking I might purchase one, probably the 30mm, as an every day lens for the NEX 5n. Sure, esoteric Leica lenses are fun, but sometimes you want something that works with a minimum of fuss. The 16mm Sony lenses is really too wide for most situations and a Sigma 19mm would be too close to this to be worthwhile.