Some more samples using the UNREAL Sigma 500mm f/4.5
This particular group of Images were shot using large fine jpeg
see this thread here
I can not express how much I regret my camera NOT being set to RAW. It took hours to get these looking as "o-kay" as they are in PS... the next series of images were shot the same day in RAW and the final post processed images took about 8 minutes each and the quality is vastly superior.
IMAGE LINK: http://jakehegnauer.zenfolio.com/p506722924/ed6addef
IMAGE LINK: http://jakehegnauer.zenfolio.com/p506722924/e105a95df
See more from the RAW files here;