What the Z50 tells us about Nikon's APS-C strategy

APS-C is a strange sensor format. Derived from the dimensions of the short-lived Advanced Photo System film negative, it emerged as the dominant format in the early days of the DSLR revolution largely because for many years, full-frame digital sensors weren't a practical option in consumer-level cameras. Canon used the even more obscure APS-H format for a few generations of its sports-oriented EOS-1D series, but by 2012, full-frame was solidly (re)established as the 'professional' format for bot...