“Bit depth” is one of those terms we’ve all rush into,but very few photographers truly understand. Photoshop offers 8, 16, or 32-bit file formats. Sometimes we see files referred to as being 24 of 48-bit. And our cameras often offer 12 vs 14-bit files (though you might get 16-bit with a medium format camera). […]
Source: petapixel.com