I think you are confused about DX versus FX. This lens is 35mm on a DX sensor (hence the name). If you put it on an FX body it would not be 52.5mm - it would be 23mm since the DX has a crop factor of 1.5.

Brett Pappas commenting onĀ Hivelogic - The AF-S DX Nikkor 35mm f/1.8G

hahahahaha