The new Zeiss Milvus 21mm (improved lens coatings over the ZF.2/ZE versions) is a must have lens for Canon or Nikon shooter (IN STOCK as this was written). Or pick up the existing Nikon-mount Zeiss ZF.2 21mm f/2.8 Distagon at a $300 discount + 4% rewards (still in stock as this was written).
This triple aperture example departs somewhat from my usual aperture series, by intention. It examines the behavior at three key apertures: f/2.8, f/5.6, f/9. Presented primarily for studying total visual impact , this series should provide useful insights into shooting the 21/2.8 Distagon in the field.
Images up to 24 megapixels at all three apertures, along with large crops.