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LEICA APO-SUMMICRON-R 90 mm f/2 ASPH.
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Apochromatic correction and the use of a lens element with an aspherical surface are combined in this compact telephoto lens for
high-performance imaging. Two of the five lens elements are made of high-refraction optical glass. Two other lens elements have
anomalous partial dispersion. As a result, brilliance and resolution are exemplary, even at full aperture. Peak performance is achie-
ved at full aperture. Vignetting is already minimal with the lens wide open. As a result of the large aperture of f/2 and impressive
contrast rendition, it produces a particularly bright viewfinder image that permits very accurate and positive focusing, even in poor
light. The nearest focusing distance is 0.7 m (27.5 in), so that subjects as small as 14 x 21 cm (5.5 x 8.25 in) can be explored. Com-
bining this lens with the LEICA APO-EXTENDER-R 2 x produces a high-performance tele combination of 180 mm f/4.
Lens shape
Asphere
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Related Manuals for Leica Apo-Summicron-R 90 f/2 ASPH
Summary of Contents for Leica Apo-Summicron-R 90 f/2 ASPH
- Page 1 The nearest focusing distance is 0.7 m (27.5 in), so that subjects as small as 14 x 21 cm (5.5 x 8.25 in) can be explored. Com- bining this lens with the LEICA APO-EXTENDER-R 2 x produces a high-performance tele combination of 180 mm f/4.
- Page 2 Setting / Type: Preset diaphragm with clickstops (including half values), Fully automatic diaphragm Smallest aperture: f/16 Bayonet LEICA R quick-change bayonet for LEICA R3 to LEICA R9 with mechanical, and, for LEICA R8/R9, additional electronic exposure control Filter (type) Internal thread for screw-in type filters E 60...
- Page 3 LEICA APO-SUMMICRON-R 90 mm f/2 ASPH. MTF graphs Aperture Stop 2.0 Aperture Stop 2.8 Y'[mm] The MTF is indicated both at full aperture and at f/5.6 at long taking distances (infinity). Shown is the contrast in percentage for 5, 10, 20 and...
- Page 4 LEICA APO-SUMMICRON-R 90 mm f/2 ASPH. Distortion Relative Distortion Vignetting Y'[mm] Y'[mm] Distortion is the deviation of the real image height (in the picture) from the ideal image height. The relative distortion is the percentage deviation. The ideal image height results from the object height and the magnification.
- Page 5 LEICA APO-SUMMICRON-R 90 mm f/2 ASPH. Depth of field table ! " #" ! " #" % &' ! " #" % &'...
- Page 6 LEICA APO-SUMMICRON-R 90 mm f/2 ASPH. ! " #" % &' ! " #" % &' ! " #" % &'...
- Page 7 LEICA APO-SUMMICRON-R 90 mm f/2 ASPH. Leica Camera AG / Oskar-Barnack-Straße 11 / D-35606 Solms / Telefon + 49 (0) 6442-208-0 / Telefax + 49 (0) 6442-208-333 www.leica-camera.com / info@leica-camera.com ! " #" % &' ! " #" % &'...