- The large aperture of F1.4 highlights the background of the subject blur.
- The aperture ring is a staged adjustment that allows for more precise control of the amount of light passing through.
- The main body of the lens is made of all metal.
- The surface of the main body is treated with an anodizing industry for corrosion protection.
- The lens is treated with a multi-layer coating to reduce glare caused by direct light.