ZEISS 55mm f/1.4 Otus ZE Distagon T* Prime - EF Mount

The ZEISS 55mm f/1.4 Otus ZE Distagon T* Prime - EF Mount lens was originally developed for SLR cameras requiring a long back focal distance for short focal lengths because of the mirror box (the distance between the back lens element and the film plane must be considerably longer than the focal length). Distagon lenses (retrofocus design) are ideal for mirrorless system cameras thanks to their optimized ray path. Even with longer focal lengths, the high-performance Distagon optical design enables consistently good correction all the way to the corners of the image and very low field curvature.

Features:

• Distagon Design
• Lens with aspheric optical surface
• Lens made of special glass with anomalous partial dispersion
• "Floating elements" design
• Canon EF Mount

Excellent 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 with this lens, architectural subjects such as a floodlit façades are reproduced accurately at night.

No Color 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 color fringing occurs. 

Medium Format Look

Thanks to its exceptional sharpness, the ZEISS Otus exploits the full potential of contemporary, high-resolution sensors and rewards photographers with images characterized by breathtaking rendition of fine detail.

Apochromat

Because this lens is an apochromat (a lens or lens system that reduces spherical and chromatic aberration), axial chromatic aberations are corrected with elements of special glass via 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

An 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.