Friends, I have been distressed by those who claim that the new Tamron 150-600 mm lens produces a soft image, so i set about testing what i sensed is true about this lens.  The top image is the original image of an eagle sitting on her nest in the fall (now) after the immatures have left.  The bottom left image is a 23% crop of the original (77% of the pixels were cut) raw image shot with the 150-600 mm extended to full 600 mm and focused on the yellow eye.  The bottom right image is the same extreme crop with a software cleanup.  You can judge for yourself.  til Tomorrow MJ