Tamron 35-150mm F2-2.8 Restricts the controls on the lens. There are only standard focus and zoom rings. Sony lenses, which cost more, have an AF/MF toggle switch and a . it's included function button, while the Fujifilm XF 16-55mm has an aperture control on the lens. The way you do things will determine if you need such features. Photographers rarely use- The lens function button, but the option to toggle focus, is often missed.