I have upgraded to this lens from the 500 f/4 G ED VR lens as now the weight is much more useable than the older 600 F4? On my first couple of days use after micro adjusting this lens is everything you would expect in terms of focus speed and...

I traded in as much as I could to help ease the price of this beast. Now that I have it I am pleased and would do the same again. I did love my 500mm f4 VR prime but many of my bird shots were cropped more than I'd have liked and this extra reach makes...