The Nikon Z5 is an entry-level full-frame mirrorless camera that looks a lot like the Z6, handles a lot like the Z6, and offers a lot of the same features. So what makes it different, and why is it cheaper? Read on to find out more.

24MP CMOS sensor (not BSI)

The Nikon Z5 uses a 24MP CMOS sensor, paired with an Expeed 6 processor, but it is not the same BSI-CMOS chip that we’ve seen in the Z6 (and likely also the Sony a7 III). The Z5’s sensor is probably closely related to the last-generation sensors in the likes of the Nikon D750. For practical purposes, this means that image quality in a normal ISO sensitivity span is likely to be excellent, but the Z6 will probably have the edge at very high ISOs.
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https://www.dpreview.com/articles/3769544304/what-you-need-to-know-about-the-new-nikon-z5?slide=2