HI Dave I'm pleased with it I have to say. I had a rotten few months recently but today gave me the taste to get out and about again. I need to visit an airfield now to see how it behaves then. The shots seem pretty sharp at the top end which I had heard could be an issue with the big Sigma.
At full size 5184 x 3456 you can see reflections in the eye and great detail in the feathers. It'll do for me for sure.
Yep the Mallard is a beaut and I must confess I thought about it myself when I wrote the title. I would have been thrilled had that picture you attached been the shot I got today.
John