SIGMA 18-50mm F2.8 DC DN - The ONLY Lens You Need For SONY A6000 series cameras?

The all new Sigma 18-50mm F2.8 DG DN is here and I got the E Mount version to test it on my Sony a6000. In this video I look at who this lens if for, is it good quality and the only lens you need and what alternatives you have. 30 DAYS FREE from EPIDEMIC SOUND is here Sigma 18-50mm F2.8: TIMELINE: 0:00 - In This Video 1:40 - Build Quality 3:00 - Usability 5:15 - AutoFocus 5:55 - Drawbacks 7:07 - Alternatives 9:43 - Summary