PRODUCT INFORMATION APO- -M f/2/90mm ASPH.

High-speed lens for photo- journalism with apochro- matic correction and aspherical lens surface for all -models

With the introduction of the LEICA APO-MACRO--R color error significantly compa- new APO-SUMMICRON-M f/2/ f/2.8/100mm from the LEICA R red to the existing version. 90mm ASPH., Leica sets yet system. another milestone in the lens Slight artificial vignetting program for the range finder Of the 5 lens elements in the appears only at open aperture system , lens, two are of high-refracting and is no longer visible from f/4. carrying on the SUMMICRON glass and two have anomal par- Comma and opening error are line that has been valued by tial dispersion. One element has slight and the degree of distorti- authorities for decades. For the an aspherical surface which, on is half that of the previous first time, apochromatic correc- due to its size, had to be produ- model. tion and the use of an aspheri- ced in a complicated grinding cal surface were combined in and polishing process. Together In spite of these improvements, one LEICA lens. It sets a new with the apochromatic correc- the compact dimensions and standard in the range of high tion, this procedure reduced the weight of the new lens are speed reportage and portrait photography. This lens replaces the SUMMICRON-M f/2/90 mm that was introduced in 1983.

The image performance of the APO-SUMMICRON-M f/2/90mm ASPH. could be increased signi- ficantly compared to its prede- cessor. Brilliance and resolution are exemplary over the entire image field, already with open aperture. This performance can even be increased slightly by stopping down one aperture step. The overall performance measures up to the legendary PRODUCT INFORMATION almost the same as those of the when using longer focal lengt- previous model. The built-in, hs. The larger metering basis telescopic lens hood shields compared to the "normal" M6 effectively against stray light increases the setting accuracy and damage to the front lens. as well. The lens handles excellently and forms a compact, harmonious Conclusion: the new M lens unit together with the LEICA APO-SUMMICRON-M f/2/ 90mm M6. ASPH. carries the tradition of LEICA high-precision lenses on The LEICA M6 0.85 and LEICA in an impressive manner. The M6 TTL are well-suited to this popular reportage and portrait lens since these models have focal length is now available 20% greater viewfinder magni- with the excellent APO-quality fication which makes asses- adding ideally to the versatile sment of the subject easier product range of the M system.

MTF (Blende 2.00) Technical Data

• Angle of view: 27° • Number of elements: 5 (5 components) APO-SUMMICRON-M • Filtersize: E55 1:2/90mm ASPH. • Internal thread: M55x0,75 • Smallest aperture: 16 in a soft leather case, with lens MTF (Blende 5.60) cap and rear cover • Combined meter/feet scale • Focusing range:: black anodized finish infinity to 1m Order no. 11 884______• Smallest object field: 220x330mm, approx. 1:9) Accessories: • Parallel guided focusing mount UVa-filter E 55 • Camera view finder Order no. 13 373______The MTF is indicated both at full aperture and at • LEICA M quick change bayonet f/5.6 at long taking distances (infinity). Shown Replacements: is the contrast in percentage for 5, 10, 20 and • Black anodized finish 40 lp/mm accross the height of the 35 mm film Soft leather case format, for tangential (dotted line) and sagittal • Built-in, telescopic lens hood (solid line) structures, in white light. The 5 and • Order no. 14 705______10 lp/mm will give an indication regarding the Lens cap diameter: 64mm Lens front cap contrast ratio for large object structures.The • Length from bayonet flange: 20 and 40 lp/mm records the resolution of finer Order no. 14 289______and finest object structures. 78mm Lens rear cover • Diameter: 64mm Order no. 14 269______sagittal structures • Weight: 0,500kg ------tangential structures Leica. Fascination and Precision.

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