I am planning to get a wide angle lens for landscape photography. I have used canon's 24-105 before, and found that I mostly crop in the image I took at the 24mm, but I ve seen reviews on the 16mm f1.4 and its regarded as the "best" FujiFilm lens, is that really true? I am attracted to the 23mm f2 because of the size (I use a xt20). I can get them for about the same price on some Chinese used camera market. How big is the image quality difference between the two, and if there's not a big difference, I might just go with the 23mm, but I feel like I'm missing out on a very good deal (I can get the 16mm for 350 CAD). Can anyone help me with this decision?