LEICA APO-SUMMICRON-SL 28MM F2 ASPH
Constructional Details
What makes the APO-Summicron-SL 28 f/2 ASPH. so special is an optical system comprising of 13 lens elements produced with unique expertise and the latest manufacturing technology by Leica. Of these, three elements with six aspherical surfaces correct monochromatic aberration, while eight elements manufactured from specially formulated, high-quality glass types ensure chromatic correction throughout the entire focusing range.
Only the particular optical property of these glass types, known as anomalous partial dispersion, makes it possible to compensate for chromatic aberrations with such perfection. As a consequence of this, even highlights in images remain almost completely free of color fringing.
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What makes the APO-Summicron-SL 28 f/2 ASPH. so special is an optical system comprising of 13 lens elements produced with unique expertise and the latest manufacturing technology by Leica. Of these, three elements with six aspherical surfaces correct monochromatic aberration, while eight elements manufactured from specially formulated, high-quality glass types ensure chromatic correction throughout the entire focusing range.
Only the particular optical property of these glass types, known as anomalous partial dispersion, makes it possible to compensate for chromatic aberrations with such perfection. As a consequence of this, even highlights in images remain almost completely free of color fringing.
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