The only thing I don't like much about this lens is that it trombones as you zoom to the longer focal lengths so it does increase in length. If I'm not actively observing the tromboning I don't really care. It just looks funny when you are sitting around playing with the lens and getting to know its feel.
For the kind of found scene photos I like to take it focuses quite quickly and silently. I've loosened up my stance on slower lenses for another reason; cameras like the S1, S1H and the Leica SL2S are all low light monsters, capable of being used at ISOs like 12,800 with very little image degradation. At least very little that I notice. Now that the constraints of noise have been largely removed from our gear (across nearly every line of cameras) the differences between fast and slow lenses start to blur and then the only difference becomes...the blur.
With wider focal lengths such as the range on this lens, or the native focal length on the Fuji X100V, I've started really embracing the idea of getting deeper focus. Shallow focus and wide angles of view are rarely as convincing an effect as I want it to be and I'm starting to consider the teeny-tiny slice of sharp focus with massive blur in front and behind to be the provenance of the longer, faster lenses. If you like the super-blurry background/foreground effect you'll get it with much more ease if you stick with super fast 50mm lenses, very fast short tele lenses, like the 85mm f1.4s and then just about any lens longer than 100mm with an aperture of f2.8 or larger.
Today I mostly set the 20-60mm lens to f8.0 and left it there. If I moved in close that aperture worked to give me a sharp main subject and a subtly blurred background. If I moved further away from the main subject I got more and more of the overall frame in focus and this worked well for me.
Even though it is considered a venal sin in some circles I did use the camera in Jpeg today and I cranked down the resolution to "medium". My idea was that the reduction in size would both reduce noise and increase overall sharpness and, secondly, that I'd spend much less time futzing around with the enormous 47.5 megapixel files in post where they would end up needed to be reduced for web use anyway. I'm pretty sure 20 megapixels will give me enough quality on the blog....
When I actually looked at the files at length I was quite happy with the results. The lens didn't disappoint me with its corner performance and I found most of the frames to be snappy, contrasty and filled with juicy detail. In all it's a lens that I'm using more and more of the time.
Next week, when we're photographing models for a very large medical devices manufacturer, I'll switch back over to shooting raw, using a series of really good single focal length primes, and lighting the models with sharpness, contrast and color in mind. For a gentle walk around the city I think it's fair to forego the 15 pound camera bag full of primes. I really just need one camera hanging off my left shoulder, equipped with a lens that isn't so front heavy that the bottom of the camera rests against my side. The 20-60mm fits the bill nicely.