Fujifilm XF16-55mmF2.8 R LM WR

You would need to carry four XF prime lenses to replicate the focal range of this zoom lens. However with the XF16-55mmF2.8 you get every mm inbetween 16mm and 55mm to fine tune your composition even more. This convenience while maintaining amazing image quality gives you an extra advantage versus carrying four fixed focal length lenses.