>>4355691tech issues.
>z5, z6really crappy autofocus made fuji look great
>z6, z7PDAF banding in semi-deep shadows. the z6 and z7 also had recalls for defective IBIS units.
>z6ii, z7iithis is the gen where the PDAF banding is mostly gone (if you really look hard, you might see it in the noise) and the autofocus is comparable to fujifilm's in tracking capability, speed, and accuracy. DSLRs still outperform it in the cluster point/single point modes you'd use when the tracking refuses to cooperate.
also, yes, nikon's quality went down. first they closed most of their service centers and began stiffing independent repair businesses, cutting off parts supply. then the z8 and z9 both had recalls (two recalls on the z8). ken rockwell got cameras to review and ended up dealing with tilted EVFs and shit. on top of them being the brand that wont repair your camera even if you pay if you live in the US and bought it from a japanese pawn shop, and canon cameras being comparable now, nikon is looking like they deserve to be #6 under panasonic and fuji.