Sigma AF 400mm APO Macro
I just sold my sigma 300/4 nikon mount. Traded it for a Nikon 80-200. I kind a miss it. It was a beautiful lens. Sharp even with TC. I miss the long reach. That's why i am looking towards the 400/5.6.
Canon mounts on sigma 300/4 was available with HSM. Not Nikon mounts.