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Otus-55mm-ZE-f1.4-EF

Is a focal length of 55 mm always neither here nor there? A lacklustre lens somewhere between the excitement of super wides and the fascination of long teles? Not when it combines the more than 120 years of optical and mechanical excellence ZEISS is famous for throughout the world.

Experience the quality and look of medium format photography – with the ZEISS Otus® 1.4/55. No matter whether you shoot in daylight or at night, close up or more distant subjects, people, objects or landscapes, this lens will simply take your breath away with its high resolution and outstanding sharpness in every photographic situation. In short – it’s the best standard lens in the world.

Every shot tells a different story, as you can see in this image taken with the Otus 1.4/55. Capture incredible moments and share them at the ZEISS Flickr Community. Regardless of which ZEISS lens you use.

In contrast to its predecessors with similar focal lengths and speed, this is first time that the Distagon type has been selected for the optical construction of a standard lens. Only this optical design with its considerably longer construction makes it possible to already realise consistently excellent correction from corner to corner of the frame and extremely low image field curvature at a very large initial aperture.

	Distagon with 12 lens elements in 10 groups
	Lens with aspheric surface
	Lens made of special glass with anomalous partial dispersion
	"Floating Elements" design

The ultimate in image contrast

Aberrations caused by extreme differences between shadows and highlights are particularly obvious in images captured at night. Thanks to the outstanding correction of lateral chromatic aberration, the floodlit facade is reproduced with absolute perfection.

No colour fringing

Sources of light located in front of or behind the plane of focus present particular challenges to every lens. In the case of the ZEISS Otus, longitudinal chromatic aberration is so low that practically no colour fringing occurs.

The medium format look

Thanks to its exceptional sharpness, the ZEISS Otus exploits the full potentials of contemporary high-resolution sensors and rewards photographers with images characterised by breathtaking rendition of even the finest details.

Apochromat

Because this lens is an apochromat, chromatic aberrations (axial chromatic aberations) are corrected with elements of special glass with anomalous partial dispersion. The chromatic aberrations are therefore significantly below the defined limits. Bright-dark transitions in the image, and especially highlights, are reproduced almost completely free of color artifacts.

Aspherical design

The aspherical lens design ensures consistent imaging performance throughout the entire focusing range as well as sharpness to the periphery of the image. The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations compared to a simple lens.

Πηγή: https://www.zeiss.com/camera-lenses/en_de/camera_lenses/otus/otus1455.html