The Zeiss Planar T 100 mm for Canon stands out in its category, primarily because it is 1 stop faster than competitors. The maximum magnification of this 100 mm f/2 lens reaches 1:2 and the minimum focus distance is 17.3 inches. Although the focus system is manual, the viewfinder remains active as to offer some guidance to the user. Constructed well, the Zeiss Planar T 100 mm for Canon features a chromium-plated bayonet. The Zeiss Planar T 100 mm uses a retro-focus design so that the front element does not rotate. This 100 mm f/2 lens produces photos without any sign of distortion while the vignetting is kept at standard levels for its category. Chromatic aberrations are under control, and the Zeiss Planar T 100 mm for Canon delivers smooth bokeh effects. Often employed in macro photography, the Zeiss Planar T 100 mm is adaptable enough to be used for portraits.