This is the seventh in a series of posts about the Voigtlander 65 mm f/2 Apo-Lanthar macro lens. The series starts here. I’ve been asked about the Voigtlander 65 mm f/2 Apo-Lanthar’s longitudinal chromatic aberration (LoCA) and focus shift at 1:2 reproduction ratio. I made a series of exposures at each whole f-stop from f/2 through… [Read More]