Nikon NIKKOR Z 50mm f/1.8 S vs Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR

The Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR is a zoom (18-140mm) and the Nikon NIKKOR Z 50mm f/1.8 S is a 50mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.8 vs f/3.5) and lighter to carry. Choose flexibility or a fast single focal length.

Choose the Nikon NIKKOR Z 50mm f/1.8 S if you want more light and background blur — f/1.8 is faster than f/3.5, better for low light and subject separation. Choose it if you prefer a fast, compact single focal length — a 50mm prime over a zoom. Choose it if you work outdoors — it's weather-sealed against dust and moisture; the other isn't.

Choose the Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR if you need more reach — it goes to 140mm vs 50mm for distant subjects, wildlife and sport. Choose it if you shoot wide — it starts at 18mm vs 50mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 18-140mm zoom covers what the fixed 50mm can't reframe. Choose it if you shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.

Aperture: the Nikon NIKKOR Z 50mm f/1.8 S opens to f/1.8 vs the Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR's f/3.5 — more light and shallower depth-of-field.