Was having a lot of trouble with my new Sigma 150-600C. Everything was too soft. After upgrading the firmware in the camera (Canon 7D2) the focus is much better - it is capable of razor sharp images. Keeper rate is still probably only 10% or less. I was ready to send the lens back but now I think its more me than the lens. These are some I thought were ok.
If you want to reply, then
register here. Registration is free and your account is created instantly, so you can post right away.