I currently have the kit lens that came with the D90 (18-105mm VR). It holds me in pretty good stead for now.
As I continue to get more serious and think about what subjects I know I want to do more of, one is certainly macro/micro work. Shooting stills/very close-ups for my artisan cheese blog but I'd also like to experiment with plants, insects etc very close up. Depth of field stuff.
Distance is (probably?) not an issue.
The other is candid portraits. I struggle catching the detail I want currently but am still very novice.
Third is low-light work, non-flash. (Shooting food in low-light restaurant settings for example, often without a stand/tripod)
Is a lens such as this moving in the right direction?
Can you help me understand the qualitative differences between this versus this (other than VR)?
Other alternatives?