I recently mortgaged my soul and for the first time since going digital bought a lens that was not either a Canon of Nikon lens. The Sigma fills a gap that I had been finding frustrating, so not having the Masai Mara, the Galapagos or the Antarctic to go to right now, I went to my local zoo to see how it would behave.
I have the Canon mount version and tried several bodies before I settled on the EOS 80D - much because of the later tech inside but also the shutter seems a lot softer than my 7DII. I do have FF bodies but wanted the extra narrow FoV to pull in subjects as close as possible.
So here are some of the results, processed from RAW, but not massively so - cropping, sharpening to overcome the AA filter, and getting managing contrast. I have not tried to sharpen the images significantly...
Sigma Photos
Notes:
The lion I kept cropping to see how far I could go and get decent resolution, but I finally had enough noise and a facial.
The flamingo has a large circular artifact left in deliberately to demonstrate how the lens handles bokeh.
Comments welcome.