Large bokeh for powerful visual expression Unmatched large bokeh opens up new expressive possibilities The most notable feature of the Sigma 135mm F1.4 DG | Art is its extremely large bokeh. The effective aperture diameter of the 135mm F1.4 lens produces exceptional bokeh, which is larger than that of the Sigma 105mm F1.4 DG HSM | Art known as “Bokeh Master,” and is comparable to that of the Sigma 200mm F2 DG OS | Sports. The natural perspective unique to 135mm, together with its overwhelming bokeh, highlights the subject and creates dimensional portraits achievable only with this lens. Optical design optimized to produce the natural bokeh Thorough correction of chromatic aberration, which is common in telephoto lenses, achieves clear bokeh without color bleeding. The design also minimizes vignetting, rendering natural, near-circular bokeh even at the edges―fully utilizing the wide-open aperture. Sigma’s craftsmanship behind the beautiful bokeh A 13-blade diaphragm maintains a