John Riley reviews the vintage Carl Zeiss Tessar 50mm f/2.8 lens with the 50mp Canon EOS 5DS R. 10 Jan 2019 8:30AM by John Riley | Carl Zeiss Tessar 50mm f/2.8 in Vintage Lenses BUY NOW CARL ZEISS ...
First looking at sharpness, at f/2.8 the image is soft centrally. It reaches a good standard at f/4, but really becomes crisp and very good between f/5.6 and the minimum aperture of f/16. The edges ...