Hi,
I have read a lot of reviews of the 16mm 1.4 WR which praise it for sharpness, contrast and color. However, Auto Focus they all seem to agree upon, is good, but not exceptional, so e.g. street photography is out of the question.
One thing I noticed though, was that all the reviews (that I found) was from before the 29th of June 2015 where Fuji released the 4.0 firmware.
So my question is: Has the 4.0 update improved upon the 16mm's AF performance?
And: Does the 16mm use a linear motor for AF or an older (slower, more noisy) system?