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The APO-Summicron-SL 75mm f/2 ASPH. has its own special qualities: they are compact, fast and deliver outstanding performance. Their speed enables a wide range of new options, for instance, the creative use of depth of field to isolate subjects from the foreground and background, showing the special bokeh Leica lenses are known for.

A further highlight is a significantly shorter closest focusing distance (0.5m) that lets the photographer capture fast movements or the use in challenging lighting conditions.

The construction and design of the Leica APO-Summicron-SL 75mm f/2 ASPH. clearly illustrate the next step in the development of lenses for the Leica SL-System. The result is reflected not only in more compact dimensions, but also in the significantly lower weight of the lenses. The exceptional performance of the lenses already available for the Leica SL has actually been surpassed, not only in terms of resolution, colour and contrast rendition, but also in the homogeneous centre-to-edge sharpness at all aperture settings. A further new highlight is a significantly shorter closest focusing distance and faster autofocus with Dual Syncro Drive^TM.

The optical system of the APO-Summicron-SL 75 f/2 ASPH. is comprised of 11 elements, one of which has an aspherical surface. A very high proportion of these elements is manufactured from specially formulated, high-quality glass types for the correction of chromatic aberration. Their particular optical property, so-called anomalous partial dispersion, enables compensation for chromatic aberrations resulting from the other glasses in the optical system. As a result, even highlights in images remain almost completely free of colour fringing.