[dillame]

小弟想買個鏡頭去旅行用(主要影景同影人)，心目中有Tamron A16 及 Sigma 18-200 OS, 其實A16成品好似靚D，但係我怕個焦距唔夠用。所以想問問意見…

[gwu1]

For portrait and wide and normal angle landscape, A16 should be sufficient. But if you want to zoom in for some landscape, you need longer range. It really depends on your need. But usually, for lens with range from 18-200 (not high end ones), the 200mm end would be soft unless you use small aperture like f8. That means 200mm would be only for bright sunny days.