Nikon Nikkor AF-S 24mm f1.4 G ED Nano Wide Angle Prime Lens w/ Shade -
Amazon.com : Rokinon 24mm F/1.4 Aspherical Wide Angle Lens for Nikon with Automatic AE Chip for Auto Aperture, Auto Exposure and Focus Confirmation RK24MAF-N : Digital Slr Camera Lenses : Electronics