| After using my 50-200 DA for sometime, I find the sharpness a bit lacking (especially on the longer end). Fringing I can fix, lack of detail to begin with I cannot. IF the 55-300 is indeed much sharper while keeping with the pentax tradition of great color and contrast, then I'd upgrade if the bokeh is atleast equal. For my shoots, I've found 200mm to be enough, so it shouldn't be difficult for the 55-300 to be an improvement at 200mm (it'll already be slightly faster). I'm pretty excited for the lens actually. |