The price is quite another matter. If you want to buy this lens separately you have to spend almost $1000 for it and it's a lot. Buying it in a set with the camera is a more sensible and preferable solution because then the surcharge is just about $600, a price point that can be called acceptable.
shapely and handy casing,; good image quality in the frame centre,; sensible image quality on the edge of the APS-C/DX sensor,; moderate longitudinal chromatic aberration,; sensible correction of lateral chromatic aberration,; low spherical aberration,; negligible vignetting on the APS-C/DX,; lack...
a lot of distortion problems on RAW files,; huge vignetting on full frame.