ZEISS EF Distagon T* 18mm f/3.5 ZE

The Zeiss Distagon T* 18mm f/3.5 ZE Wide Angle Lens is designed floating lens elements that deliver consistent high-quality over the entire distance range from 0.98'(0.3 m) to infinity. The Zeiss T* anti-reflective coating yields images with depth, contrast and brilliance even under a difficult lighting situations. Optimal color correction yields images with contrasting edges, delivered without color fringing. This ultra-wide provides the photographer with a tool that enables dramatic perspectives and creative possibilities.
When combined with a digital SLR using a DX type sensor, this lens has an effective focal length of 27mm.