Barry, Indeed. Given the number of visitors, and no known "incidents", it is safe to say that glass is strong enough.
Sury
I am really enjoying the wide angle lens. Though I wish I got Min 17-35 f2.8, the Sigma 17-35f2.8-4 is no slouch either.
Seattle city view.
Same view with Bracketing 9 images, post processed in HDR Machinery and LR5.7.
![Image](https://live.staticflickr.com/65535/51286450663_270ecd0f4f_b.jpg)