Tamron lens test

[Craig-61]

Hi, I just purchased a new Tamron 70 300mm vc for my Nikon d5100, as a relative beginner I would be interested in your views on the sharpness of this lens at 300mm, all shot at iso100, aperture priority, spot focused on the centre of the image, if you click the full size image it gives a better idea of sharpness.

Thanks Craig

f5/6

f8

f11

A crop from the last image which seems the sharpest