Mac compatibility is, of course, top of the list. Many of us at digitalcameraworld.com are also Mac users, so have day-to-day experience with the convenience of the built-in cameras against their quality limitations. As such, we test the webcams we suggest in real meetings. That also means realistic home and office lighting conditions. When we're looking at a product with a special feature, like face tracking (which offers an alternative to Apple's Center Stage without you needing a new machine), we'll be sure to test that by moving around, too.