copy ah bear's speech...but ....but...these are my views.
nope... landscape, you may use a pro-sumer camera, with a tripod
and shoot jpeg....
unless, if u are really very very serious, you shoot RAW, spend
lots of time clean up and process the pics...
bugs you may find a prosumer camera shoots the insects better than
using macro lens..
i'm going to hit the sack liao.. 
