No no. I meant - the sigma lenses don't do good AF on sony. The first samyang lenses didnt do good AF on sony. And then of course the sigma ef adapter doesn't deliver the goods, although I'm sure that's much trickier to pull off
on my A7III i checked out the sigma 24-105mm vs the sony 24-105mm at my local store and will agree that the native sony glass felt better and more confident plus the sigma is a fair amount bigger which for me defeats the smallness of my sony system. i also found that the sigma 24-105mm didnt do as well in lower light vs the sony version. i like sigma lenses and have a bunch on my canon systems but i think in general native glass usually seems to win.





