I really don't know which one to choose. I like both cameras.
Which one has better auto focus
Which one is more powerful
Which one is more portable
Which one is a better buy
Added (1). I am going to costa rica for spring break and I used to own a Nikon P90 before it broke and I loed that camera.It needs to be something practical though.
>>> Nikon D3100 or Nikon P510?