With an immensely versatile focal length, the optical design of the Sigma 35mm f/1.4 DG HSM Art lens for Leica/Panasonic L-Mount consistently creates crisp shots full of rich color and sharp contrast. The maximum f/1.4 aperture works well in low-light conditions and provides enhanced control over the focus position when shooting shallow depth-of-field. A series of optical elements work together to minimize chromatic and spherical aberrations, and the HSM autofocus performance is fast, accurate and quiet. Enhance artistic expression A bright, wide angle prime lens, the Sigma 35mm f/1.4 DG HSM Art lens is perfect for low-light conditions as well as creativity in depth-of-field, and lends itself well to a variety of creative and artistic applications. A floating internal focusing system dramatically reduces aberration, and a Thermally Stable Composite (TSC) construction helps ensure minimal thermal shrinkage for greater overall performance in any shooting situation. Crisp, clear imagery One “F” Low-Dispersion (FLD) and four Special Low Dispersion (SLD) elements in the Sigma 35mm f/1.4 DG HSM Art lens work together to help minimize chromatic aberrations and color fringing, increasing color accuracy. Two aspherical elements help reduce distortion, improving overall image clarity. A Super Multi-Layer coating on the lens elements helps minimize ghosting and flaring, generating greater color contrast and precision tonality. Fast, quiet autofocus The Hyper Sonic Motor (HSM) in the Sigma 35mm f/1.4 DG HSM Art lens provides fast, smooth autofocusing, all while maintaining near-silent performance. Full-time manual focus is easily achieved by rotating the focus ring.