I have a Nikon F2 and am looking to expand my lens collection. I also have a Canon F1 with a ton of FD lenses I inhereted from my grandfather. There is just something about the Nikon I just like better though. When I'm reaching for a camera, it always seems to be the Nikon. I currently only have a Nikkor 50mm 1.4 lens. I really love this lens, but was looking to get something wider. Any suggestions on something specific to look for? Since Its an F2, its OK if the lens is non AI, especially if it will make it cheaper. Thanks in advance for the help!