hiking and traveling, it is not easy to keep changing lenses, there are flowers need close up shot, there are far away landscape and close big object so on, so i need a lense for both situation.
another thing, thinking about to get some filters. some photos with filters look very good. some people use GND, some people use UV, and some use CPL. they are very similar result. but what do you think in your experience. if the pages roll very fast, you can QQH me. thanks very much in advance!