Zeiss 135/2 APO Sonnar zf2 available for preorder

Oh yes, the Zeiss 15 is worth every penny. It is one of those lenses that will amaze you every time you use it. I see it as a wider ZF 21/2.8 but without the distortion. In every aspect fantastic (color, no distortion, bokeh, lack of CA, contrast, sharpness, ...).

The 14-24 is excellent as well, but has some drawbacks while the Zeiss has none. And for that extra quality you have to pay. But then you get a lens that will last more than a lifetime.