Just received my long wait Tamrom 150-600mm lens few weeks ago, perfect timing, did a few quick test shot last weekend and took it out today for the SF Fleet Week Airshow. it was surprisingly easy to handhold, for a cheap 600mm lens, I am pretty happy with what I can get out of this lens so far, I still have a long way to go getting the best out of this lens, I just hope with more practice I can get some better images.