I have read some many reviews and comparison on Sigma 150-600(C) vs Tamron 150-600. It is getting to be mind bothering to decide which one. I went to BH and tried the used Tamron 150-600 v1. I tried Tamron 150-600 v1 lens with 1D IV and the focusing with pretty fast. Also, the Tamron 150-600 v1 lens with TC was also fast and no focus hunting. After trying the Tamron 150-600 v1, I went to the new lens section to try the Sigma 150-600(C) on the 5DIII. The Sigma 150-600(C) was hunting a lot with focusing.
Has anyone brought the Sigma 150-600(C) having issue with the focus hunting/didn't like the overall performance and return it to buy the Tamron 150-600 v1 or vice-versa?