20mm F1.8 EX DG ASP RF
- Fastest wide angle prime available on the market
- Rear focusing system technology
- Carrying case, lens hood, front & rear caps
Designed to deliver the ultimate in performance on full-frame digital SLRs, Sigma DG lenses also bring out the best in 35mm SLR film cameras and APS-C size DLSRs.
The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.
A rear focus system that prevents focus-dependent variation in aberration, making high-level image quality possible throughout the entire image. With their unchanging barrel length, these lenses also enhance balance and stability for the photographer.
The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.