I've been shooting a GFX50s since shortly after it was released and my lens lineup is as follows - 23mm, great wide angle lens - 45mm, super fast and my go to lens for dark sky photography. Then there's the 32-64 which is my main lens that I use for the zoom lens and it simply is a great piece of glass. I also have the 120 macro which I've been using with great success lately. The newest lens is the 100-200 which I haven't had the chance to use much of but I'm pleased with it. The 250 has been used a lot and I have no complaints. I also have an 18 and 45 macro adaptor tubes which works great and then there's the 1.4 extender that works equally well with both the 100-200 as well as the 250. I had a 63mm but found I had no great for it and sold it shortly after trying it. I shoot landscape, nature and wildlife and recently macro water drops and use each of the lenses above and like them all equally as well. And yes I'm a gear slut!