LensTip.com

Lens review

Carl Zeiss Apo Sonnar T* 135 mm f/2.0 ZE/ZF.2

3 November 2013
Arkadiusz Olech

7. Coma, astigmatism and bokeh

The coma is corrected in a perfect way – I could swap the thumbnails, presented below, at random and you would hardly spot any difference. In this category the lens can be only praised.

Carl Zeiss Apo Sonnar T* 135 mm f/2.0 ZE/ZF.2 - Coma, astigmatism and bokeh


We don’t have any reservations concerning the astigmatism correction either. An average difference between vertical and horizontal MTF50 values amounted to just 3.5% - a very good result.


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When it comes to the appearance of the defocused light points I have to admit we haven’t seen such a perfect image for a long time. The circles feature very even, smooth spread of light without any noticeable local extremes. Only when you examine them using 1:1 scale you can notice a slightly lighter rim on the very edge. The lens can provide a very nice blur – the fans of perfect bokeh will be satisfied for sure.

Carl Zeiss Apo Sonnar T* 135 mm f/2.0 ZE/ZF.2 - Coma, astigmatism and bokeh