title: Sigma 8mm f/4 EX DG lens
text: # Sigma 8mm f/4 EX DG lens
  
  The Sigma 8mm f/4 EX DG is a photographic lens made by the Sigma Corporation. It is a circular fisheye lens for full-frame cameras, and has been replaced by the Sigma 8mm f/3.5 EX DG.
  
  