• HD coating effectively reduces the average reflectivity and improves light transmission and minimizes flare and ghosting images even under harsh lighting conditions such as backlight to provide crisp, high-contrast images • Base Model - The new exterior design is similar to the latest DA, D, and FA series lenses while maintaining the dimensions of smc PENTAX-FA50mm F1.4 • Once attached to the PENTAX DSLR camera body, the lens can be used as a standard 50mm lens in full frame format or a 76.5mm medium telephoto lens in APS-C format • The large F1.4 open aperture produces images with a very shallow depth of field • It is coated with a water-repellent and oleophobic SP (Super Protect) coating that is applied to the front of the lens to facilitate water and dirt