The ultra-wide focal lengths can be great fun to play around with, but they also need to be used with care as the degree of distortion they produce doesn't always work with some subjects. So would you invest in a ultra-wide prime that you might not end up using a lot? However, if these focal lengths were included in a zoom that also gives you the more versatile focal lengths of 24mm and 28mm, it might be a different story.
As it happens, if you're shooting with a Nikon Z-series full-frame mirrorless camera, you're a bit spoiled for choice when it comes to ultra-wide zooms. The lens system already includes two S-Line modes - the 14-24mm f/2.8 and the 14-30mm f/4.0 - and now there's the 17-28m f/2.8. Not surprisingly, the 14-24mm f/2.8 S is pretty pricey at $4,199, but both the 14-30mm f/4.0 and the 17-28mm f/2.8 will cost you about the
