An expansive wide-angle for Nikon F mount DSLRs, the Milvus 21mm f/2.8 ZF.2 Lens from Zeiss utilizes a Distagon design to control distortion and produce sharp, clean imagery with a dynamic perspective. A floating elements system is also employed for consistent performance throughout the aperture range and four anomalous partial dispersion elements are featured to control chromatic aberrations for increased clarity and sharpness. For minimizing flare and ghosting, an enhanced Zeiss T* anti-reflective coating has been applied to benefit working in difficult lighting conditions. Its manual focus design is complemented by a rubberized focus ring for fine-tuned, precise control over your focus position. This ZF.2 lens also features a manual aperture ring that can be manually de-clicked for silent, stepless switching between aperture setting to benefit video applications. Additionally, Milvus-series lenses also feature an equally aesthetic and durable frosted, anodized metal lens barrel surface along with a weather-sealed construction to protect against dust and moisture.