The high optical quality & its excellent luminosity are the characteristic features of the SP AF 60mm F/2.0 Di II Macro 1:1. It builds on the long-standing tradition of the legendary SP AF90mm F/2.8 Di MACRO 1:1 & the SP AF180mm F/3.5 Di MACRO 1:1. The magnification ratio of 1:1 means that you can capture the smallest details that nature has to offer in full format. It belongs to the Super performance (SP) class of Tamron lenses distinguished by ultra high optical & mechanical quality. Dramatically attractive blurred background effects which make the motive stand out from its background can be generated with this high speed lens at open aperture. Moreover, shots under low-light conditions are possible. A new autofocus system means that you can maintain full-time manual control of the sharpness level at any time by intervening without engaging the AF/MF switch-over button. The lens employs a large focus control ring to ensure a solid grip & precise control which is especially important in macro photography. The macro 60mm was constructed exclusively for digital SLR cameras with image sensors not greater than 16x 24mm & offers an angle of view when converted to full frame corresponding to a focal length of 93mm. This lens is ideal for macro & portrait photography. Aberrations are kept at a minimum with Tamron’s Di II technologies. Especially the so-called internal surface coatings, which are also applied to cemented surfaces, ensure for brilliant & sharp images right up to the edges. Impressive shots are guaranteed with this supreme lens. Please note that Di II lenses are made for the exclusive use on digital SLR cameras with image sensors smaller than 24mm x 16mm. Di II lenses cannot be used together with a full format or 35mm SLR camera, as their image sensors are not able to cover the entire area of full format resulting in dark corners of the (i.e. vignetting becomes noticeable).