I bought this as a package. The backpack was excellent the filters as advertised, the cleaning package good. the lens hood, however, was screw-in, not bayonet and has horizontal vignetting at 10mm setting. Not Good!! Someone should have noticed this! A bayonet mount hood would not have this problem.
Consistent Output; Durable; Easily Interchangeable; Fast / accurate auto-focus; Lightweight; Strong Construction