The following is not a review of the Sigma 30mm f/1.4 or the Nikkor 35mm f/1.8 (for that go to places like http://dslr-video.com/blogmag/?p=1479), nor an exhaustive test. Rather, consider this a set of side-by-side samples from these two wonderful lenses. You decide which is best for you.

All samples were taken with a Nikon D90 at ISO200 and mounted on a tripod.