I'm looking for a bit wider lens for travel (and maybe for professional gigs too) as I'm tired of switching between 50-400mm and 35mm. I also want a bit more, sharpeness, cause I'm thinking of getting a A7RIV in the near future, right now I got A7IV. I've been stuck on this lens since it first came across marketplace when I was originally looking for 24-70mm. I do like the 100mm a lot and 35mm has been wide enough for me, so I'm thinking about going for the 28mm-105mm. But is it really that good everyone keeps saying? I know it's heavy but I don't mind the weight as the 50-400mm weights pretty much the same.