Heritage of superior imaging and optical performanceTAMRON's 90mm macro lenses have long been celebrated for their high resolution and beautiful bokeh. The new 90mm F2.8 Macro lens, designed specifically for mirrorless cameras, reinforces this legacy via a rigorous optical simulation process during its development. This lens offers unparalleled resolution from the center to the edges, and delivers soft, velvety blurred bokeh and a three-dimensional effect that highlights the subject.The optical construction features 15 elements in 12 groups, including four special glass Ld (Low Dispersion) lens elements that effectively suppress the tendency of light ray divergence and provide excellent correction for both spherical and chromatic aberration.