Greetings,
Sadly it is normal behaviour of makro-planar 2/50 Zx. It may be controversial aspect about the range of this chromatic aberrations. Looks here: http://www.photozone.de/canon_eos_ff/535-zeiss50f2eosff?start=1 (last photo and description at 'Bokeh Fringing / Longitudinal Chromatic Aberrations (LoCA)' paragraph). It is described as not much disturbing. Makro-Planar 2/50 is great double Gauss lens with outstanding close range correction of spherical abberation but it is not apochromatic lens in term of Zeiss's apo-chromatic definition. It has also wide difference between MTF performance at center and corner of image plane with wide-open aperture. Best regards, WZ.
Comments (4)
Sadly it is normal behaviour of makro-planar 2/50 Zx. It may be controversial aspect about the range of this chromatic aberrations. Looks here: http://www.photozone.de/canon_eos_ff/535-zeiss50f2eosff?start=1 (last photo and description at 'Bokeh Fringing / Longitudinal Chromatic Aberrations (LoCA)' paragraph). It is described as not much disturbing. Makro-Planar 2/50 is great double Gauss lens with outstanding close range correction of spherical abberation but it is not apochromatic lens in term of Zeiss's apo-chromatic definition. It has also wide difference between MTF performance at center and corner of image plane with wide-open aperture. Best regards, WZ.