Introduction Zeiss already make a range of manual focus lenses for Canon and Nikon, but this new model is the first in a new range of high-end Otus lenses from the maker optimized for the next generation of full-frame high-resolution DSLRs. As with the Touits, the new naming of the series follows the maker’s liking for adopting scientific names of birds for their lenses.Unlike those earlier lenses designed for mirrorless cameras, this fast standard is a retrofocus full-frame (35mm format) model, but the 55mm focal length also works well on APS-C cameras, where it has a