I have a Tamron 150-600mm that I find heavy, difficult to use, and disappointing as I thought it meant I could bring the far away birds into range. It's terrible at that. However, took it along on our birding adventures this week and discovered when used within a reasonable distance (not reaching across the pond or pasture), it is sharp with a lovely background. Might have to start lifting hand weights to see if I can get strong and steady enough to hand hold it.
Such detail in the feathers. I have the same lens and it is a bear to lug around. I am still very low on my learning curve with the lens. I agree, weight lifting is my future.
Beautiful shot. I stick with maximum 400 mm for hand held, I have to say, partially for the weight of it, fully extended - couldn't hold it still. Sometimes I need more and don't have it, which is frustrating, but hey ho!