Can you pick......

[ebiggs1]

Can you pick the one taken by a lens that is considered the sharpest there is vs the one that isn't considered the best in IQ?

3rd one thrown in just to make it more challenging.  Only lens correction in LR has been done. No special lab techinques done either just a quck snap shot.  This is just the way it is done in real world use.

[ebiggs1]

Rick actually the test was between A and C.   B was just a spoiler to make it more difficult.  It isn't even a 35mm lens.

The point is the very best lens the Sigma 35mm f/1.4 DG HSM Art Lens for Canon vs a lens considered by most to be not very good the Canon EF 28-135mm f/3.5-5.6 IS USM Lens.  Plus it was a prime vs a zoom.

If you picked A then you are pretty "sharp" at picking lenses. "I feel great because my untrained eye was spot on!"  

[jrhoffman75]

Plus, the place of the focus point doesn’t always mean the place of focus if the AFMA isn’t on target.

To me the bottom line is that there are many factors that ultimately affect how sharp an image is, and those factors can negate the lens quality. We try to control those factors to maximize image quality.

[ScottyP]

The bokeh balls in shot "C" contain some onion rings and some inclusions.

"A" looks sharper than "B".

None of these differences are all lthat major in this shot.

Did you correct for CA?  I would have expected to see more of it in a shot including sharp edges against a bright background.

[ebiggs1]

Scott, I have a preset in LR that does lens correction upon import.  I never change it and it runs on every photo.  So yes, CA was done.  One lens was the Sigma 35mm f/1.4 DG HSM Art Lens for Canon.  One was another 35mm and the other was a 50mm.  Perhaps that clue will help.