Looking at the Nikon webpage showing all the different Nikkor autofocus lenses I find myself somewhat confused. http://imaging.nikon.com/products/imaging/lineup/lens/index.htm Nikon does two types of digital camera bodies, right? FX and DX. Looking at the lenses, DX lenses will obviously fit DX bodies, but can you use them for the FX bodies as well? What about all the other lenses? Can you use them all for both FX and DX bodies? The reason I ask is because I’m looking for new lenses for my D40, but I would like to be able to use these lenses in the future as well, even if I decide to upgrade from my D40 at some point. Also, I’ve stumbled upon the term “Prosumer” a couple of times. The meaning is obvious, but what would be considered the “prosumer” equivalent of the AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR for instance? Hope someone can help me. Link(s) to page(s) explaning the above is fine as well :smile: Thank you.