Interesting sharpness of your Tamron. These few shots at F2.8 is stunning. I know the lens has issue with its extreme ends say at around 180-200mm. But the performance of the under 150mm is truly impressive. Did you sharpen that a bit? You should post these few images in Pentax forum giving credit to that lens in that FL range. I always tell people not to use the extreme ends of zooms unless is needed. Good show
