According to recently rumors from CanonRumors, Canon is working on a new telephoto prime lens to replace currently EF 135mm f/2L USM lens, the release date could be sometime in 2016.
Tag: Canon EF 135mm f/2L USM
Zeiss 135mm f/2 Apo Sonnar T* Vs. Canon EF 135mm f/2L USM
Korean website tistory posted their review for Zeiss new lens 135mm f/2 Apo Sonnar T*. They made a comparison of Zeiss 135mm f/2 and Canon EF 135m f/2L. The Zeiss 135mm f/2 APO Sonnar T* costs $2,122, while EF 135mm f/2L only for $889.