This aperture series from f/2 through f/11 looks at sharpness across the field and near to far with the Voigtlander 35mm f/2 APO-Lanthar Aspherical.
A practical must-read for any Voigtlander 35/2 APO user, a special assessment is done here: the sharpness-damaging effects of its rearward focus shift are shown, but a 2nd aperture series with refocusing to compensate for the shift shows that the lens is supremely sharp when focused optimally.
Includes a detailed discussion of why I am rejecting the Voigtlander FE 35mm f/2 APO-Lanthar for my own landscape photography use. But I also include three different approaches to mitigating the focus shift. Because the lens is a very strong performer with excellent build quality and haptics and compact form factor.