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Leica APO Summicron-M f2.75mm ASPH lens
Ilse Jurriën : May 25th 2005 - 21:14 CET
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LeicaLeica APO Summicron-M f2.75mm ASPH lens : Leica Camera has added a compact medium telephoto to its range of lenses for Leica rangefinder cameras. The Leica APO Summicron-M f2.75mm ASPH is the first lens of this focal length class to feature a floating element: During focusing, the last lens element change their position in relation to the rest of the optical system. The Leica Summicron-M f2.75mm is thus able to offer superlative quality in the close-focus range down to 0.7 meters. To take full advantage of the floating element, a highly precise adjustment mechanism has been used, although finding the space for it in a compact M lens was no easy feat! The natural perspective of the 75mm focal length enables true-to-life rendering.
Leica APO Summicron-M f2.75mm ASPH lensLeica lens - True-to-life photographs
"True-to-life photographs happen spontaneously - in the daytime and at night, from a distance or at close quarters. The universal Leica APO Summicron-M f2.75mm ASPH is ideal in these and almost every situation. For example, it produces a natural 3D effect in portraits so that the face’s highlights and contours are emphasized without looking artificial," says Jean-Jacques Viau, Product Manager Photo at Leica Camera AG.

Leica lens - Great natural results
Jean-Jacques Viau continued: "The high-speed Leica APO Summicron-M f2.75mm ASPH lens performs just as well in available light situations, too, where use is made of the small amount of natural light, leading to emotional, extremely natural results. The lens’s compact dimensions - the field of view of the 75mm viewfinder frame is not restricted by the lens on the camera - make for excellent handling. Together with a Leica wide-angle lens, the universal Leica APO Summicron-M f2.75mm ASPH forms a versatile camera outfit."

Leica APO Summicron-M f2.75mm ASPH lens - Finest structures
Even at full aperture, the Leica APO Summicron-M f2.75mm ASPH lens produces high contrast even of the finest structures. This performance can only be improved slightly by stopping down. Distortion is a mere 1%. The vignetting is normal for high-speed lenses – here up to about 1 stop in the picture corners – is reduced further by stopping down: At f/2.8 it is already negligible apart from the far corners, and at f/5.6 it has disappeared from corners as well. The use of state-of-the-art coating technology and the additional of a new textured matt-finishing to the interior mount guarantees minimum reflections, ensuring natural images at any distance and in any light.

Leica APO Summicron-M f2.75mm - 7 lens elements
The optical design of the Leica APO Summicron-M f2.75mm ASPH lens consists of seven lens elements in five component groups. A homogeneously high imaging performance over the entire image field is achieved by using high-refraction glass types, two with partial anomalous dispersion, one of which originates from the former Leitz glass laboratory.

Leica APO Summicron-M f2.75mm ASPH lens – Reliable and Long-lasting
"Like all Leica lenses, the Leica APO Summicron-M f2.75mm ASPH was developed by Leica optic specialists. It is a particularly reliable and long-lasting product made of high-quality materials and meticulously assembled by hand at our Solms factory. The combination of state-of-the-art technology and experienced craftsmanship ensures the constant quality of every single Leica lens," adds Jean-Jacques Viau.

Leica lens - Built-in telescopic lens hood
The Leica APO Summicron-M f2.75mm ASPH lens comes with a built-in telescopic lens hood as protection against stray light or dirt. It can be locked in position to prevent it being inadvertently pushed in. The well-balanced proportions of the lens encourage hours of comfortable use. The Leica APO Summicron-M f2.75mm ASPH lens will be available at selected Leica dealers from June 2005.

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