I read quite a few reviews of the 23mm Summicron-T before picking it up, and most noted something along the lines of: "Lateral chromatic aberration remained within the negligible category for all aperture settings." (e.g., Photo Review)
But I see a lot of CA, both in the camera JPEGs and whatever Lightroom can do with the RAWs. I've attached downscaled corner crops from two here.
Am I just not using this thing right or is something wrong with mine? Most of what I see below does not qualify as "negligible" in my book. I know these are overexposed a bit (usually need to remember to bring the EV down a bit in automatic modes with the T) and have some harsh contrast, but it still seems excessive.