Upload & Sell: Off
It is a hard sell for those of us who have had so many problems with Sigma lenses for 25+ years. Things like the front end just falling apart, coating coming off, AF failing after 3 weeks of use and Sigma claiming that it was abuse, AF being totally unacceptable, etc. are not what I want to put up with thousands of miles from a camera shop. Some of the newer Sigmas are more expensive than in the past and I hope better built.
I am one of those guys that is down on off-brand 3rd party lenses. Never, never! But...........as things go, I broke down and bought the Sigma 85mm f1.4. Now let this skeptic say, this is a very nice lens. Maybe, probably better than my Canon 85mm and at less than half the price. So much appreciation from the 85mm, I got the 35mm f1.4.
This may well be the best 35mm available, period. (not weather sealed)
There certainly is something going on at Sigma. These offerings are fantastic and well built. No issues with either.
Now it is certain there are some junk, absolute junk, from Sigma, too. Plus I am still firm against other 3rd party lenses. Even and including Tokina and Tamron with on caveat from Tamron. The 24-70mm f2.8 as a buddy has one and it is very, very good. I may have to alter my beliefs again! It's problem is, it is getting into the pricey area.
Sigma's biggest problem right now is no weather sealing. Canon better look over their shoulder and see what is catching up.