The Zeiss Sonnar T* 2/135 is the best corrected and sharpest lens of its type in this focal length, and it’s also one of the best performing model we’ve seen so far on the Canon EOS 5D Mk III.
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.
Further readings for the Zeiss Apo Sonnar T* 2/135 ZE Canon mount lens review: Ultra-high performer
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