ChangshaNotes - What lens(es) do you have?
Quite a few.
I have the kit lens 18-55mm but I don't use it often, I prefer the prime lenses.
These are the Sony lenses I have
SEL 16mm 2.8 - I also have an adapter that makes this 12mm. It's inexpensive for a wide angle lens.
SEL 35mm 1.8 - This lens is my most used and the one I use if I'm only carrying one lens.
SEL 50mm 1.8 - This lens is great for portraits and gives a very smooth bokeh.
SEL 55-210mm - A zoom with good reach.
One of the best features of the NEX is how easy it is to use old manual lenses on them. With a cheap adapter (no glass, just a spacer for different mounts) you can use almost any lens that has aperture control on the lens body. Of course with these there is no auto-focus but the camera will still adjust exposure based on the aperture you choose.
I have a bunch of manual lens I use a lot that my father owned in the 70's for his Nikon film camera.
This is a very friendly NEX only forum that has a lot of information about using the camera. It's where I learned the most about my NEX and photography in general.