Zeiss 25mm f/2 Distagon: Bristlecone Trunks (Nikon D800E)
Published in Guide to Zeiss is a new Zeiss 25mm f/2.8 Distagon aperture series from f/2 - f/16 with the usual retina grade images and generously sized crops.
In addition to the usual analysis, this aperture series is a practical exploration of choosing an aperture, weighing subject/background separation and vignetting against stopping down for deep depth of field.