The Sigma is a cream machine. I say it all the time: this is the best 50/1.4 you can get for Nikon cameras. Small wonder, it’s big, heavy and more expensive than the Nikon 50/1.4G.
This is an image, straight from the camera, taken this morning in one of those few old-fashioned tramway trains on Vienna’s line #5. Normally you can’t open windows, here you still can 🙂