I'll post some more pictures for you when I get back home (got called back to work place). Most of the Blue Angels' photos which I posted were taken with Sigma 150-500mm. For the price OF ~$1000, I think it is pretty good IQwise.
To NikonForFun. All photos below are just resized & NOT PSed at all. Except the moon shot & the last one, all the rest were handheld with OS1 on & all were taken just for fun.
f14 1/1.3s +1.0ev 500mm
Have you ever checked photos taken with this zoom at 100%, especially those taken at f8-f16, 400-500mm and speed at 1/1000s or faster?
I already have a Nikon 70-300mm VR zoom. I found the image quality of that zoom is just Okay.
Thank you for the posting. Great job!