This caught me by surprise when I took a quick snap shot of my macro lens lens cap. I didn't realize that it can cast purple fringe when shot wide open. Is this common for this lens? Attached file is a crop image at 100% view.
While this is with the older AF 105mm f2.8 micro. I would expect many lenses would show this LoCA under these conditions of a very high contrast subject shot wide open with nearly no dof. It goes away when you stop down. It's also nearly impossible to eliminate in post.
You do know how to make a point, Len. I was seeing that in a newly acquired 200mm Micro MF and had the perhaps mistaken notion that more contemporary macro lenses might have eliminated that particular distortion. I guess bending light has consequences that modern lens design ameliorates but does not eliminate.
Len, I don't have CS6, but I was under the impression that the CA tools were included as part of Adobe Camera Raw.
I wasn't able to correct the CA in your shot with the automatic tool in LR5, but used the color picker in the Defringe component. ref. Develop Module>Lens Corrections>Color. I did a separate adjustment for the green and purple fringing.
Lightroom has many excellent and time saving features, I think you will find it a good investment.
>Len, I don't have CS6, but I was under the impression that >the CA tools were included as part of Adobe Camera Raw. > >I wasn't able to correct the CA in your shot with the >automatic tool in LR5, but used the color picker in the >Defringe component. ref. Develop Module>Lens >Corrections>Color. I did a separate adjustment for the >green and purple fringing. > >Lightroom has many excellent and time saving features, I think >you will find it a good investment.
John, I just received LR5 in the mail, installed it and within 2 minutes was able to fully remove the magenta and green fringing. It's was quite easy. CS6 doesn't have the same tool that I can find. I wasn't able to remove it in CS6.
My Tamron 90mm f2.8 macro does that too shot wide open on a lens cap. The only lens I have that doesn't show it is my Sigma 150mm f2.8. I've found the Nikon lens cap to be one item to show CA the most....I need to stop shooting lens caps and get on to better subjects.
My 1.5 year old Nikkor 105 f2.8 Micro does the same. I've seen in this situation and also at the edges of tree twigs in very high contrast scenes. It is generally not visible at normal viewing of images.