11-28-13

aquilan

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.

11-28-13

JT

This seems normal and actually better than most non corrected lenses. Chance are you won't be photographing rulers on a regular basis :) As far as Zeiss addressing this, they can't. It's just the characteristics of such a lens design. 9999999.999% of the time you wont even notice it on a regular photograph. There is always the Otus which takes care of CA but at a price. Have a look at these. It will make you feel better :) http://zeissimages.com/standardgallery.php?lenstype=441&showall