Sigma's new 10-18mm f/2.8 DC DN Contemporary lens offers APS-C shooters a very nice combination of ultra-wide focal lengths in tandem with a wide maximum aperture, making it a nice option for a variety of shooters, including landscape photographers, events shooters, and much more. How does it hold up in practice? This awesome video review takes a look at the sort of performance and image quality you can expect from it in usage.