Wide-Angle Prime Lens This fast, f/1.4 lens is effective in low light settings and captures a natural wide angle of view on both FX and DX format cameras. Two Extra-Low Dispersion (ED) Elements The two ED elements in the AF-S Nikkor 24mm f/1.4G offer superior sharpness and color correction by effectively minimizing chromatic aberration, even at the widest aperture settings. Two Aspherical Lens Elements Aspherical lens elements virtually eliminate coma and other types of aberration, even when shooting at the widest available aperture. Silent Wave Motor (SWM) The Nikon Silent Wave Motor (SWM) enables fast, accurate and quiet autofocus. Rear Focus (RF) Rear focus provides smooth and fast autofocus while eliminating front barrel rotation and lens extension. Nano Crystal Coat Nano Crystal coating reduces ghosting and internal flare across a wide range of wavelengths for impressive image clarity. M/A Focus Mode Switch The M/A focus mode switch enables quick changes between manual and autofocus operation. Precise manual focus is available at all times, even in AF mode. Rounded 9-Blade Diaphragm A rounded 9-blade diaphragm renders more natural appearance of out-of-focus image elements.