Get Nikon 105mm f/1.4E at B&H Photo.
This aperture series from f/1.4 through f/9 shows overall performance along with a right bottom corner weakness observed repeatedly in other outdoor distance scenes. It’s the kind of thing that drives me nuts when the camera itself is in question including a second sample. I never had such problems with my rock-solid Nikon D810.
Bottom line: modern digital is unforgiving of very tiny errors (3+ microns)—it shows up. It is sort of a scavenger hunt to find a camera body in near-perfect alignment and lenses are often more challenging. Infinity / far distance focus is the most demanding case, as with this scene. Camera errors and lens errors can combine also, further confusing the issue.
Includes images up to Nikon D850 45-megapixel resolution.