Zeiss Apo Sonnar T* 2/135 ZE Canon mount lens review: Ultra-high performerBy Kevin Carter - Tuesday January 14 2014 Lens Review
But, it’s up against tough competition from the Canon EF 135mm f2L USM. Not only is that lens close in optical performance it’s lighter, smaller and has the additional flexibility of auto-focus. It’s also more accessible in terms of pricing.
Be that as it may, the Zeiss is a superb performer optically and appears good value when compared to other models from the company.