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LEICA APO-SUMMICRON-M I 23
LEICA APO-SUMMICRON-M 50 mm f/2 ASPH.
Anything but a standard lens.
The enormous speed of developments in the field of digital photography in recent years has brought cameras with
ever increasing resolution and, correspondingly, constantly increasing demands on lens quality. This is particularly
true in the case of the Leica M Monochrom and its ability to resolve even the finest details with extreme sharpness.
So the time was ripe for a lens constructed on the basis of optical calculations refined and perfected over many years.
And now, our engineers have impressively redefined the limits of the technically possible, and have set entirely new
standards in image quality, in the form of the new Leica APO-Summicron-M 50 mm f/2 ASPH. lens. The challenge they
set themselves was to explore the limits of what is possible within standard specifications when a fast aperture, an ex-
treme angle of view and the effort to be invested are not taken into account. This situation made it possible to concen-
trate entirely on achieving ultimate perfection in image quality from the beginning. The result is a lens that, for the first
time ever, exploits the immense potential of contemporary high-resolution camera systems without compromise.
The new APO-Summicron-M 50 mm f/2 ASPH. features a total of eight lens elements. The design of the optical group
in front of the diaphragm is based on that of the outstanding Leica Summilux-M 50 mm f/1.4 ASPH. The group behind
it is similar to that of the Summilux-M 35 mm f/1.4 ASPH. As in the case of the Summilux, this is a floating element
that ensures excellent image quality from infinity to the closest focusing range. Furthermore, the lens employs extremely
complex and elaborate apochromatic correction, to correct chromatic aberrations. This minimises colour fringing on
sharp edges to ensure natural rendition of every detail. This is achieved, for instance, by the ingenious incorporation
of glass with anomalous partial dispersion in its optical design. Consequently, photographers benefit from the best
possible image quality for prints in any format. Full-size view.
LEICA APO-SUMMICRON-M 50 mm f/2 ASPH., ISO 500, f/2, 1/180 s