Upload & Sell: Off
In my test shootout I found the CV has a fair amount of CA. Less than the 21 Lux, but more than the slower 21s in the comparison. The CA cleans up pretty well in LR. It will purple fringe somewhat in high contrast situations at wider apertures, i.e. backlit tree branches. On the whole though, I think it's a great lens that effectively balances speed and optical performance for the price.