TTArtisan 90mm f/1.25: B&H Photo / Amazon
The TTArtisan 90mm f/1.25 has been showing up as discontinued overseas and at B&H Photo for various mounts, so this lens will likely be hard to find soon. I think it is one of the best fast 90mm manual lenses at any price point and it even compares well to the outrageously expensive Leica Summilux-M 90mm f/1.5 ASPH. I own this lens for M-mount and adapt it for other cameras without issue, but if you plan to use this on GFX you might want to get the GF mount edition, which is one of the native mount options.
