Nikon introduced a 35mm f/1.8 prime for their cropped DX cameras. I had used my old 50mm f/1.8 when I started with the D80, but moved to the 24 mm f/2.8 as the compact, light kit. Somehow when I moved up to the bigger, heavier D300 it made more sense to put the bigger Tamron 17-55mm zoom, giving me a fuller range.
But now with the smaller D7000, a small, light prime makes sense again so I’ve added the 35mm f/1.8 DX to my kit. So far I find it sharp enough but the out of focus areas can be harsh looking. In this image I used the narrower DOF but in the end added more blur with Photoshop to get the background softer and more surpressed.